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SUMMARY:Structure investigations of radiation-modified polimers
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1151@indico.inp.nsk.su
DESCRIPTION:Speakers: Uliana Ancharova (ISSCM SB RAS)\nPolymethylmethacryl
ate and polyethylene were irradiated with intense beam of high-energy elec
trons or with 'white' beam of synchrotron radiation with different doses.
Results of changes in structure are presented: using synchrotron radiation
X-Ray diffraction and thermal analysis.\n\nX-ray diffraction experiments
were carried out with involvement of equipment belonging to the shared res
earch center SSTRC\, BINP SB RAS.\n\nhttps://indico.inp.nsk.su/event/3/con
tributions/1151/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1151/
END:VEVENT
BEGIN:VEVENT
SUMMARY:20 years of X-ray refractive optics: Status and New opportunities
for diffraction limited X-ray sources.
DTSTART;VALUE=DATE-TIME:20160705T032000Z
DTEND;VALUE=DATE-TIME:20160705T040000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1152@indico.inp.nsk.su
DESCRIPTION:Speakers: Anatoly Snigirev (Immanuel Kant Baltic Federal Unive
rsity)\nAfter the first successful experimental demonstration 20 years ago
[1]\, the use of X-ray refractive optics has rapidly expanded and they ar
e now in common use at 15 synchrotrons in 10 countries. This development h
as intensified after the successful implementation of transfocators - tuna
ble devices based on refractive lenses [2]. In addition to traditional mic
ro-focusing applications\, the transfocators can provide the following bea
m conditioning functions in the energy range from 3 to 100 (200) keV:\n-
condensers with a tunable beam size\, \n- micro-radian collimators \,
\n- low-band pass filters - monochromator [2] \n- high harmonics re
jecters [3] \nNew advanced parameters of the beam provided by the diffract
ion limited sources – XFELs and new synchrotrons with the reduced horizo
ntal emittance will open up a unique opportunity to build up a new concept
for the loss-free beam transport and conditioning systems based on in-lin
e refractive optics. Taking an advantage of the substantially reduced hor
izontal source size and the beam divergence these new systems integrated i
nto the front-end can transfer the photon beam almost without losses from
the front-end to any further secondary optical systems (mirrors\, crystals
\, lenses etc.) or directly to the end-stations. Evidently\, beamlines wil
l benefit from the possibility to include active moveable lens systems in
the front-ends. In this regard\, development of diamond refractive optics
is crucial [4\,5]. The implementation of the lens-based beam transport con
cept will significantly simplify the layout of majority of the new beamlin
es [6]. It will also allow a smooth beamlines transition from the present
beam parameters to the upgraded ones\, avoiding major optics modifications
[7]. \nThe field of applications of refractive optics is not limited to b
eam conditioning\, but can be extended into the area of Fourier optics\, a
s well as coherent diffraction and imaging techniques [8-12]. Using the in
trinsic property of the refractive lens as a Fourier transformer\, the coh
erent diffraction microscopy and high resolution diffraction methods have
been proposed to study 3-D structures of semiconductor crystals and mesosc
opic materials [12–14].\nAnother promising direction of refractive optic
s development is in-line X-ray interferometry. Recently proposed bi- and m
ulti-lens interferometers can generate an interference field with a variab
le period ranging from tens of nanometers to tens of micrometers [15\,16].
This simple way to create an X-ray standing wave in paraxial geometry ope
ns up the opportunity to develop new X-ray interferometry techniques to st
udy natural and advanced man-made nano-scale materials\, such as self-orga
nized bio-systems\, photonic and colloidal crystals\, and nano-electronics
materials. As a classical interferometer it can be used for phase contras
t imaging and radiography. Finally it can be useful for the coherence char
acterization of the X-rays sources and free electron lasers.\n\nReferences
\n[1] A. Snigirev\, V. Kohn\, I. Snigireva\, B. Lengeler\, Nature\, 384 (1
996) 49. \n[2] G.B.M. Vaughan\, J.P. Wright\, A. Bytchkov et al\, J. Synch
rotron Rad.\, 18 (2011) 125.\n[3] M. Polikarpov\, I. Snigireva\, A. Snigir
ev\, J. Synchrotron Rad.\, 21\, (2014) 484.\n[4] M. Polikarpov\, I. Snigir
eva\, J. Morse et al\, J. Synchrotron Rad.\, 22 (2015) 23.\n[5] 11. S. Ter
entyev\, V. Blank\, S. Polyakovet al\, Appl. Phys. Let.\, 107 (2015) 11110
8.\n[6] M. W. Bowler\, D. Nurizzo\, R. Barrett et al\, J. Synchrotron. Rad
.\, 22 (2015) 1540.\n[7] Orange Book “ESRF Upgrade programme Phase II 92
015-2022)\, Technical Design Study”\, G. Admans\, P. Berkvens\, A. Kapro
lat\, J.L. Revol\, eds.\, (2014).\n[8] V. Kohn\, I. Snigireva\, A. Snigire
v\, Opt. Comm.\, 216 (2003) 247. \n[9] M. Drakopoulos\, A. Snigirev\, I. S
nigirev et al\, Appl. Phys. Lett.\, 86 (2005) 014102.\n[10] P. Ershov\, S.
Kuznetsov\, I. Snigireva et al\, Appl. Cryst. 46 (2013) 1475.\n[11] H. Si
mons\, A. King\, W. Ludwig et al\, Nature Communications\, 6 (2015) 6098.\
n[12] A. Bosak\, I. Snigireva\, K. Napolskii\, A. Snigirev\, Adv. Mater.\,
22 (2010) 3256.\n[13] D. V. Byelov\, J.-M. Meijer\, I. Snigireva et al\,
RSC Advances\, 3 (2013) 15670.V. \n[14] Kohn\, I. Snigireva\, A. Snigirev
\, J. Synchrotron Rad.\, 21 (2014) 729.\n[15] A. Snigirev\, I. Snigireva\,
V. Kohn et al\, Phys. Rev. Lett. 103 (2009) 064801.\n[16] A. Snigirev\, I
. Snigireva\, M. Lyubomirskiy\, V. Kohn\, V. Yunkin\, and S. Kuznetsov\, O
ptics express\, 22(21) (2014) 25842.\n\nhttps://indico.inp.nsk.su/event/3/
contributions/1152/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1152/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The investigation of the aluminum nitride formation during the alu
minum nanopowder combustion in air
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1238@indico.inp.nsk.su
DESCRIPTION:Speakers: Andrei Mostovshchikov (Tomsk Polytechnic University)
\nThe phase formation sequences\, intermediate and final products of alumi
num the nanopowder combustion are studied. It is found\, that the main com
bustion product is aluminum nitride. In the combustion of aluminum nanopow
der\, aluminum γ-oxide is the first to form\, and aluminum nitride is for
med next. The formation of aluminum probably occurs by successive displace
ment of oxygen by nitrogen from the aluminum oxide. The use of sliding (in
cident at a small angle to the surface) synchrotron radiation made it poss
ible to determine with high accuracy (in time) the sequence of stages of f
ormation of crystalline products during combustion of the aluminum nanopow
der.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1238/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1238/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Source-Based Calibration of the Soft X-ray Detectors at the SSTRC
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1153@indico.inp.nsk.su
DESCRIPTION:Speakers: Anton Nikolenko (BINP)\, Natalya Makarova (Altai Sta
te Technical University)\nThe development of the procedure of absolute cal
ibration of the soft X-ray detectors is presented. In our measurements\, t
he detector is positioned in a calculable synchrotron radiation flux behin
d filters of well-known transmittance. The spectral responsivity of the de
tector is restored on the basis of measurement data using a set of integra
l equations. Previously\, this procedure was used for calibration of the s
ilicon photodiodes SPPD11\, which had a relatively low sensitivity and lar
ge dark signal. Currently\, the calibration procedure is developed for the
calibration of a diamond type detectors. The report comprises descripti
on of the program for the data processing and solution of the system of in
tegral equations. The preliminary results of the calibration of the absolu
te sensitivity of fast coaxial-type diamond detectors is presented too.\n
\nhttps://indico.inp.nsk.su/event/3/contributions/1153/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1153/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The application coated NEG as main pumpdown facility in the narrow
extensive chambers of the particle accelarators
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1187@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexey Semenov (Michailovich)\nThe vacuum system is
an important and integral part of every modern scientific facility. The pa
per describes in detail the design and manufacturing of prototypes with co
ated non-evaporable getter (NEG) as main pumpdown for NSLS-II third genera
tion synchrotron light source and for Coherent electron Cooling of eRHIC.
TiZrV NEG sputtered film in the narrow extensive chambers is a vacuum tech
nology for obtained ultra-high vacuum which is used in many particle accel
erators worldwide. The experimental results of NEG film sticking probabili
ty for hydrogen are presented here.\n\nhttps://indico.inp.nsk.su/event/3/c
ontributions/1187/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1187/
END:VEVENT
BEGIN:VEVENT
SUMMARY:EXAFS study Pt-Me/carbon supported catalytic systems
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1198@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Kriventsov (Boreskov Institute of Catalysis
)\nE.P. Yakimchuk1\, V.V. Kriventsov1\, B.N. Novgorodov1\, D.P. Ivanov1\,
D.G. Aksenov1\, D.A. Zyuzin1\, N.S. Smirnova2\, V.Z. Radkevich3\, D.O. Ant
onov4\, A.V. Chistyakov4\, A.S. Fedotov4\, S.A. Nikolaev5\, M.V. Tsodikov4
\n\n1) Boreskov Institute of Catalysis SB RAS\, Novosibirsk\, Russia\n2) I
nstitute of Hydrocarbons Processing SB RAS\, Omsk\, Russia.\n3) Institute
of Physical Organic Chemistry NAS of Belarus\, Minsk\, Belarus.\n4) Topchi
ev Institute of Petrochemical Synthesis\, RAS\, Moscow\, Russia\n5) Lomono
sov Moscow State University\, Department of Chemistry\, Moscow\, Russia\n\
nIn recent years\, few new types of carbon supported catalysts\, such as a
ctivated carbon \nfibers\, Busofit and CNF carbon nanofibers-based catalys
ts\, inspire a growing interest. As rule\, Busofit and CNF based catalysts
have improved catalytic selectivity\, activity and thermostability as com
pared to the traditional carbon supported catalysts using carbon-black or
Sibunit as supports. This modification of catalytic properties is believed
to result from higher accessibility of the deposited active component to
the reactants and from strong interactions between the catalyst particles
and the support surface. This work is devoted to the comparative structura
l study of few promising Pt\, Pt-Me carbon-based \ncatalytic systems using
different carbon supports by the EXAFS methods: 1) Pt\, Pt-Me Busofit-bas
ed catalysts for CO oxidation\; 2) Pt\, Pt-Me CNF-based cathode catalysts
for PEMFC\; 3) Pt\, Pt-Me Sibunit-based catalysts for hydrocarbon conversi
on. Mesoporous granular carbon composite - Sibunit and carbon active fibe
rs " Busofit (as woven activated carbon fabric modified with thermally sta
ble acid groups) was used for prepaation of supported metal catalysts. Pl
atinum in Pt- and PtMe-forms of Busofit was introduced from Pt(NH3)4Cl2 aq
ueous solution by means of impregnation and ion-exchange. A series of CNF
with different arrangement of graphitic planes were synthesized by decomp
osition of methane and ethylene over transition metal catalysts. These str
uctural types of CNF were used for preparation of the Pt\, Pt-Me catalysts
for PEMFC cathodes. Various synthetic techniques were studied\, using H2P
tCl6 and other Pt complexes as Pt precursors. All EXAFS spectra of the stu
died samples were recorded at Siberian Synchrotron and Terahertz Radiation
Center (SSTRC\, Novosibirsk). The local Pt and Me (Fe\, Cu\, Co) arrangem
ents of all the samples studied were established and the phase composition
s were determined. It was shown that there are some differences of the met
al arrangements for the studied systems. All possible structural models we
re discussed. In addition\, these samples were studied by the TEM\, EDX an
d X-ray diffraction methods. The data of all methods are in a good agreeme
nt. \n\nThe work was done using the infrastructure of the Shared-Use Cente
r “Siberian Synchrotron and Terahertz Radiation Center (SSTRC)” based
on VEPP-3 of BINP SB RAS. This work was supported by RFBR (140301066\, 163
350248\, 163350249\, 163350250\, 160301139)\, SB RAS comprehensive program
II.2P (Project 0305-2015-0018).\n\nhttps://indico.inp.nsk.su/event/3/cont
ributions/1198/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1198/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Novosibirsk Free Electron Laser – unique source of the terahertz
and infrared coherent radiation
DTSTART;VALUE=DATE-TIME:20160704T032000Z
DTEND;VALUE=DATE-TIME:20160704T040000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1154@indico.inp.nsk.su
DESCRIPTION:Speakers: Oleg Shevchenko (BINP)\nA powerful free electron las
ers (FEL) has been created at Budker INP. Its wavelength can be tuned over
a wide range in terahertz and infrared spectrum regions. As a source of e
lectron bunches this FEL uses multi-turn energy recovery linac which has f
ive straight sections. Three sections are used for three FELs which operat
e in different wavelength ranges (the first one - 90-240 microns\, the sec
ond - 37 – 80 microns and the third - 5 – 20 microns).\nThe first and
the second FELs were commissioned in 2003 and 2009 respectively. They oper
ate for users now. The third FEL is installed on forth accelerator track w
hich is the last one and electron energy is maximal here. It comprises thr
ee undulator sections and 40 m optical cavity. The first lasing of this FE
L was obtained in summer\, 2015. The radiation wavelength was 9 microns an
d average power was about 100 watts. The designed power is 1 kilowatt at r
epetition rate 3.75 MHz. Radiation of third FEL has been delivered to user
stations recently. \nThe third FEL commissioning results as well as curre
nt status of the first and second FELs and future development prospects ar
e presented.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1154/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1154/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Novosibirsk free electron laser as a user facility
DTSTART;VALUE=DATE-TIME:20160706T024000Z
DTEND;VALUE=DATE-TIME:20160706T032000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1155@indico.inp.nsk.su
DESCRIPTION:Speakers: Boris Knyazev (Budker Institute of Nuclear Physics)\
nNowadays\, all three laser systems of the Novosibirsk free electron laser
facility are in operation. First laser system generates tunable monochrom
atic radiation in the terahertz spectral range from 90 to 240 micrometers\
, whereas the spectral range of the second laser spans a region from 40 to
80 micrometers. Both these systems are available to users. The third lase
r has been commissioned\, and its radiation (5 – 20 micrometers) was tra
nsmitted to the user stations recently. In this report we describe the ins
trumentation available to researchers at the user stations\, and provide e
xamples of experiments carried out in the two years that have passed since
the previous conference.\n\nhttps://indico.inp.nsk.su/event/3/contributio
ns/1155/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1155/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Biomedical Applications of Terahertz Radiation
DTSTART;VALUE=DATE-TIME:20160705T042000Z
DTEND;VALUE=DATE-TIME:20160705T044000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1156@indico.inp.nsk.su
DESCRIPTION:Speakers: Vincent Wallace (UWA)\nEarly experiments by pioneers
of THz imaging demonstrated that the technique could have a variety of ap
plications\, including medicine and dentistry - terahertz images of biolog
ical tissues showed contrast between lean meat and fat\; changes in refrac
tive index of teeth at THz frequencies allow for the detection of early de
cay. \n\nSince then there have been many studies of tissues\, from wax em
bedded tissue block\, histopathological samples\, excised tissues and even
some in vivo imaging. Some of this most significant work revealed contras
t between regions of healthy skin and basal cell carcinoma\, the most comm
on form of skin cancer\, in vitro and in vivo. Further\, other work on exc
ised breast carcinoma has shown good contrast between tumours and normal t
issues. This has led to the development of a prototype handheld (intra-ope
rative THz) imaging probe for use during breast surgery. \n\nThe high abso
rption of THz by water in this range (23 mm−1 at 1 THz) makes transmissi
on imaging through a body impossible\, but it is the difference in absorpt
ion due to water content which explains the contrast seen between muscle a
nd adipose tissue and between tumour and normal tissue. Terahertz spectros
copic measurements of carcinoma show significant differences in the freque
ncy dependent refractive index and absorption coefficient. Such contrast o
n the surface is often obvious at optical frequencies but it is the abilit
y of THz to penetrate below the surface that provides the potential for me
dical imaging\, in particular\, of epithelial tissues (cancer with origins
in tissue surfaces both external and internal)\, which includes skin\, br
east and colon cancer\, accounts for 85% of all cancers. \n\nIt is the abi
lity of THz to penetrate just below the surface that provides the\, as yet
not fully realised\, potential for tissue imaging\, visualisation of the
subsurface spread of tumours and other applications. Full understanding of
the contrast mechanisms in tissues and their physiological significance w
ill enable THz to fulfil its potential for medical applications.\n\nTo dat
e in vivo measurements have been limited due to the restricted nature of i
maging systems. Compact\, mobile THz imaging systems are now being develop
ed which allows for TPI measurements in a clinical setting.\n\nhttps://ind
ico.inp.nsk.su/event/3/contributions/1156/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1156/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ferrum fluorides as nanostructured conversion cathodes: in situ XA
FS and XRD study using synchrotron radiation.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1157@indico.inp.nsk.su
DESCRIPTION:Speakers: Victor Shapovalov (Southern Federal University)\nTra
nsitional metals fluorides have been known from 1960s in the field of rech
argeable batteries. They belongs to the conversion materials\, and by reac
tion with lithium can be reduced to the mixture of zero valent metal and l
ithium fluoride\, resulting the so-called more-than-one electron reaction.
However\, possibly due to the lack of nanostructuration of commercial com
pounds\, fluorides gave the way for more immediately interesting and promi
sing materials.\n\n\n----------\n\n\nSince 1960s various technologies for
producing of nanocompounds have been developed\, so fluorides became one o
f the leading research directions for Li-ion industry. Most efforts are be
ing put into iron trifluoride for several reasons: it’s more environment
ally friendly than others\, cheaper\, requires reasonable synthesis condit
ions\, has relatively low polarization\, etc.\n\n\n----------\n\n\nIn our
study we pursue the goal to determine structural changes which take place
inside the full cell and to look at those processes in situ during cycle.
Experiment was carried on the B station of BM01 (SNBL) beamline at ESRF\,
Grenoble\, as a mixed XAFS/XRD experiment. Samples were prepared with synt
hesis of iron fluoride nanoparticles inside reduced graphene oxide sheets
which increases conductivity. The material offers a stable discharge energ
y of 600-700 Wh/kg over 100 cycles\, which is higher than the widely appli
ed cathode materials (300-500 Wh/kg). Each sample we cycled with 20 mAh/g
in the 1\,2-4\,2 V range\, while measuring Fe K-edge XAFS spectra in trans
mission mode and XRD patterns with 15 minutes interval. For measurements w
e used self-made test cells with glassy carbon windows connected to Gamry
potentiostats responsible for cycling and data acquisition.\n\n----------\
n\nThe Li intercalation in the first discharge is different from subsequen
t cycles. Up to 1.8 V\, a maximum of 0.66 Li will be inserted into the cha
nnels of the framework structure of initial FeF3 0.33H2O (from synthes
is conditions). Then peaks in the XRD patterns disappear and nanocrystalli
ne LiF and Fe phases will form below 1.8 V. On charge\, the ReO3-type FeF3
phase with higher density will form instead of the open-framework structu
re. On second and subsequent discharge reactions\, we will form LiFe2F6 in
stead\, which then also converts to LiF/Fe. This is of theoretical nature\
, because of the nanocrystalline structure of the involved phases\, which
is too small to detect in XRD\, and also similar Fe-F6 environments\, whic
h make the FeF3 phases very hard to distinguish in XAS.\n\n\n----------\n\
nResults of the x-ray studies were associated with cycling data to obtain
structure-charge state dependency. HTB structure of the as-prepared materi
al has open intercalation channels as a result\, full electrochemical reac
tion can be separated into initial intercalation of one Li- anion per form
ula unit and following conversion reaction involving two more Li-\, which
gives us 3LiF/Fe mixture and a complete three electron transition. To prov
e this we performed principal component analysis (PCA) on the series of XA
FS experimental spectra. We have used FitIt software to mathematically dec
ompose the series of the Fe K-edge spectra at different voltages into inde
pendent sub-spectra. It was found that all spectra for discharge process c
an be reproduced as a combination of three components. First component cor
responds to HTB structure\, second to the intercalated structure with Fe2+
charge state and the third one corresponds to metallic Fe. We have observ
ed that pure Fe forms after HTB conversion to intercalated phase. \nWe als
o performed a set of ab initio calculations and DFT modeling for different
concentrations of Li in cathode material. Theoretical simulations for the
Fe K-edge XANES are in progress now to figure out if we can distinguish i
ntercalated HTB structure from the LiFe2F6 phase in the XANES data.\n\nhtt
ps://indico.inp.nsk.su/event/3/contributions/1157/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1157/
END:VEVENT
BEGIN:VEVENT
SUMMARY:THE CRL'S OPTICAL PROPERTIES OF BERYLLIUM GRADES IS-50M AND O-30-
H
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1158@indico.inp.nsk.su
DESCRIPTION:Speakers: Ivan Lyatun (X-Ray Coherent Optics Laboratory (IKBFU
))\nX-ray refractive lenses [1-3] are widely used as beam transport and b
eam conditioning optics at the new generation synchrotron radiation source
s. In order to extend their use for microscopy applications the signifi
cant improvements of the optical properties in terms of shape quality a
nd bulk homogeneity are needed. It turned out that beryllium\, as a low
-Z element\, is the most suitable for lens manufacturing. However\, beryll
ium being a sintered material has an internal grain structure with a rel
atively high content of the beryllium oxide\, which create a strong small-
and ultra-small angular scattering.\n In this work we report results
of study of different types of beryllium (Materion Brush and Russian ROSA
TOM grades) using small angle scattering and phase contrast imaging techni
ques. It was shown that Be with a reduced oxygen content is preferable for
microbeam applications. As for the full-field microscopy\, Be with small
grain sizes is required. In this view a so-called “nano-beyllium” with
grain sizes smaller than 50 nm is very promising for lens manufactuiring.
\n\nReferences\n\n 1. Snigirev\,A.\,Kohn\,V.\,Snigireva\,I. & Lengeler B.
(1996). Nature\, 384\, 49-51.\n 2. A. Snigirev\, V. Kohn\, I. Snigireva an
d etc.\, "Focusing High-Energy X-Rays by Compound Refractive Lenses\," App
l. Opt. 37\, 653-662 (1998)\n 3. A. Snigirev\, I. Snigireva\, “Hard X-ra
y Microoptics”\, Springer Series in Optical Sciences vol. 137\, 255-285\
, 2008\n\nhttps://indico.inp.nsk.su/event/3/contributions/1158/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1158/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Carrier dynamics in doped Ge measured at the free electron laser f
acility FELBE
DTSTART;VALUE=DATE-TIME:20160706T080000Z
DTEND;VALUE=DATE-TIME:20160706T082000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1159@indico.inp.nsk.su
DESCRIPTION:Speakers: Nils Dessmann (Humboldt-University Berlin)\nCooled g
ermanium (Ge) photoconductive detectors are one of the most sensitive dete
ctors at terahertz (THz) frequencies. They are widely used in laboratory s
pectroscopy and imaging experiments. The speed of a Ge photoconductive det
ector is set by technical limitations such as the bias circuit\, the geome
try of the detector crystal and the electric field applied to the .detecto
r. The recovery speed of the detector material is\, however\, fundamentall
y limited only by the lifetimes of the intraband relaxation of the free ch
arge carriers within the valence or conduction band and by band-to-impurit
y relaxation (capture) down to the impurity ground state. Therefore\, capt
ure and intraband relaxation processes have been measured for different do
pants in uncompensated and compensated n- and p-type Ge by a pump-probe te
chnique at the free electron laser facility FELBE.\n\nhttps://indico.inp.n
sk.su/event/3/contributions/1159/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1159/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Possibilities for future SR and FEL development in the UK
DTSTART;VALUE=DATE-TIME:20160704T070000Z
DTEND;VALUE=DATE-TIME:20160704T074000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1199@indico.inp.nsk.su
DESCRIPTION:Speakers: Richard Walker (Diamond Light Source)\nPossibilities
for future SR and FEL development in the UK\n\nhttps://indico.inp.nsk.su/
event/3/contributions/1199/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1199/
END:VEVENT
BEGIN:VEVENT
SUMMARY:High-intense femtosecond radiation with gas medium and gas cluster
beams
DTSTART;VALUE=DATE-TIME:20160707T023000Z
DTEND;VALUE=DATE-TIME:20160707T030000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1200@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexander Shkurinov (Faculty of Physics and Internat
ional Laser Center\, Lomonosov Moscow State University\, Moscow\, Russia)\
nInteractions of laser radiation with gas cluster targets have been invest
igated in the past two decades. Cluster jet\, obtained by the adiabatic co
ndensation of gas flow\, has pronounced nonlinear optical properties and c
ombines the advantages of solid-state and gas target. Cluster inherits hig
h local density and this implies high value of nonlinear response. At the
same time cluster beams are not exposed to ablation and renew their proper
ties before each act of interaction with the laser pulse. There were obser
ved and predicted various nonlinear effects during interaction of intense
laser pulses with cluster jets: generation of X-ray radiation\, generation
of optical harmonics\, self-focusing\, Stimulated Raman Scattering. It wa
s shown theoretically and experimentally that absorption of laser radiatio
n in cluster beam can reach high value (up to 95%) which is related to lin
ear (Mie) and nonlinear resonance interactions. Resonance absorption of pu
lse energy results in efficient production of X-Ray and fast charged parti
cles. In this way\, further studies of interaction of intense laser pulses
with clusters seems reasonable due to the possibility of usage in various
practical applications and solving fundamental problems of behavior of ma
tter under intense laser fields.\n\nIn some recent publications\, intense
THz generation in cluster beam excited by ultrashort laser pulses was repo
rted. It was observed more than two orders of magnitude enhancement of THz
pulse intensity in Ar cluster jet compared to that in gaseous Ar with equ
al average atomic density. With increasing of excitant pulse energy up to
its maximum value of 70 mJ (corresponding to the vacuum intensity ~ 1017 W
/cm2) THz pulse energy increased by the square law without saturation. The
re was reported in that the directivity pattern of terahertz radiation fro
m clustered plasma has four-lobed structure. \n\nAt the present moment the
re is no clear theoretical interpretation of the experimental results and
complete understanding of the mechanism of low-frequency emission in clust
er plasma. It seems reasonable to carry out further study of terahertz gen
eration in a clustered plasma\, and examine this process in both ways: as
a fundamental issue of laser-matter interaction on the way to solving a pr
oblem of the dynamics of laser-cluster interaction\, and as a practical go
al of obtaining an effective source of pulsed THz radiation. In addition\,
there is possible to apply two-color excitation scheme\, which has been s
uccessfully used in the past to increase the efficiency of the optical to
terahertz conversion in laser-induced plasma of gas media. In this scheme\
, the fundamental laser frequency at ω is mixed with its second harmonic
at 2ω. Two-color scheme allows to increase THz yield by 2...3 orders of m
agnitude and nowadays this scheme is widely used for THz generation in gas
eous media. Nevertheless\, optical to terahertz conversion efficiency in l
aser-plasma generation method is still low. In addition\, there was observ
ed a saturation of THz yield in a two-color scheme at high excitant pulse
energy that originates from THz absorption in dense plasma. Cluster target
seems to be attractive to solve these problems. \n\nIn this paper we pres
ent the results of experimental and theoretical studies of generation of t
erahertz emission in the laser-induced clustered plasma. We have performed
experiments using both single-color and two-color excitation schemes. Sim
ultaneously with the control of terahertz emission of clustered plasma we
measured the power of accompanying X-ray radiation\, which is an important
source of information about the processes that occur in a cluster plasma.
In the theoretical section we made an attempt to explain the experimental
results.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1200/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1200/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Small-Angle X-Ray Scattering Study of Principles of Self-Organizat
ion of Amphiphilic Block Copolymers Based on Polylactide and Poly(ethylene
oxide)
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1201@indico.inp.nsk.su
DESCRIPTION:Speakers: Ekaterina Razuvaeva (ISPM RAS)\, Nikita Kuznetsov (N
RC "Kurchatov Institute")\nKuznetsov N.M.1\, Razuvaeva E.V.1\,2\, Zagoskin
Y.D.1\, Kulebyakina A.I.1\, Streltsov D.R.1\,2\, Chvalun S.N.1\,2\, Shtyk
ova E.V.3\n\n1NRC “Kurchatov Institute”\, Moscow\, Russia\n2ISPM RAS\,
Moscow\, Russia\n3IC RAS\, Moscow\, Russia\n\nE-mail: kyz993@ya.ru\, razu
vaeva.kate@gmail.com\n\nAmphiphilic block copolymers are able to self-orga
nization in water with a formation of various supramolecular structures su
ch as spherical micelles\, rod-like micelles\, filomicelles (also called w
orm-like micelles)\, polymerosomes\, etc. It is possible to control evolut
ion of specific morphologies of the copolymers in water solutions by a var
iation of the polymer composition\, architecture\, molecular weight and mo
nomer chemistry. Possibility to produce micelles based on amphiphilic bloc
k-copolymers with a defined morphology makes them attractive for applicati
ons as drug delivery systems. \n\nThe objects of this study were non-toxic
\, biocompatible\, biodegradable amphiphilic diblock (PLLAx-b-PEOy) and tr
iblock (PLLAx/2-b-PEOy-PLLAx/2) copolymers with various hydrophobic/hydrop
hilic blocks lengths ratio. The aim of this study was to investigate influ
ence of a composition of the initial block copolymers on the construction
and properties of the micellar structures by small-angle x-ray scattering
(SAXS). The research work was performed using synchrotron radiation at the
P12 beamline at the Petra III storage ring (DESY\, Hamburg).\n\nWe have r
evealed that the investigated block copolymers in water solution formed co
mplicated two-level systems consisting of individual micelles and ordered
supramicellar structures\, properties and parameters of which strongly dep
end on the architecture and composition of the initial block copolymers. I
n particular\, considerable increasing of the length of the hydrophobic la
ctide block PLLA from 64 up to 418 units (the length of the hydrophilic bl
ock poly(ethylene oxide) was a constant) in the diblock copolymers resulte
d in a paradoxical decreasing of the periodicity of the ordered motifs\, t
hat can be explained by a formation of a folded structure of the long PLLA
block. Increasing of the length of the hydrophobic lactide block PLLA fro
m 30 up to 120 units in the triblock copolymers didn’t lead to a change
of the system spacing. All block copolymers demonstrated a high degree of
the polydispersity. For the investigated block copolymers based on PLLA an
d PEO micelles the main relatively narrow fraction was presented by micell
es with diameter of about 20 nm\, but there were also larger scattering ob
jects with the sizes up to 150 nm in the solution. \n\nAs a result\, on th
e base of SAXS data\, dynamic light scattering\, atomic force and cryo-tra
nsmission microscopy data a theoretical model of the system was suggested.
\n\nThis work was supported in part by Russian Foundation for Basic Resea
rches\, project 16-03-00375.\n\nhttps://indico.inp.nsk.su/event/3/contribu
tions/1201/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1201/
END:VEVENT
BEGIN:VEVENT
SUMMARY:OBSERVATION OF GRAIN-BOUNDARY STRUCTURE FEATURES IN ALUMINIUM ALLO
YS BY MEANS OF XAS AND X-RAY TOMOGRAPHY BY SR
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1161@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexander Nizovskii (Boreskov Institute of Catalysis
)\nAluminum and its alloys are considered to be the promising agents for h
ydrogen production in reaction with water to use them in compact fuel cell
s. The only problem is to increase their reactivity. One of the methods of
activation is the treatment of aluminum by gallium-based liquid metal eut
ectics. Previously\, we noted that the process of activating the aluminum
alloys was associated with the grain boundary diffusion of the eutectic co
mponents.\nTo determine the nature of high reactivity of the activated mat
erial in reaction with water\, a number of commercial aluminum alloys were
studied with the help of the methods of XAS and X-Ray tomography by SR af
ter activation. It was shown that the highly active state was associated w
ith the formation of the nanostructured material\, wherein the components
of Ga-In eutectic distributed throughout the grain boundaries in the all t
he mass of the original sample.\nTo confirm this observation\, the aluminu
m alloys with different grain boundary structures have been investigated i
ncluding those having high reactivity as well as the samples which lost th
e activity during prolonged storage under atmospheric conditions. Using X-
ray tomography by SR\, it was shown that in all the highly reactive sample
s\, the components of Ga-In eutectic were distributed in the grain boundar
ies of the entire material. The activated samples\, in which the component
s were not evenly distributed\, did not completely dissolve in water. By X
AS method\, it has been found that in the highly active material\, the eut
ectic components were in metallic state. Deactivation during prolonged sto
rage under atmospheric conditions was associated with oxidation of the com
ponents of the eutectic alloy.\nIt is shown that the distribution of the
eutectic component in the sample is determined by the grain boundary struc
ture of the initial material.\n\nhttps://indico.inp.nsk.su/event/3/contri
butions/1161/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1161/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Current driven wire based magnetic measurement systems
DTSTART;VALUE=DATE-TIME:20160707T092000Z
DTEND;VALUE=DATE-TIME:20160707T094000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1162@indico.inp.nsk.su
DESCRIPTION:Speakers: Artem Zorin (BINP)\nManufacture of magnetic devices
like wigglers and undulators requires magnetic measurements. There are wel
l-known Hall probe and moving wire based methods. This paper describes cur
rent driven wire based method. A thin nonmagnetic wire is strained within
the wiggler. It is secured and tighten on supports located in some distanc
e from the wiggler. Wire position sensors are located on the wiggler sides
. Current applying to the wire deflects it according to the magnetic field
inside the wiggler. There are a number of current modes giving different
information. Constant current method gives 1-st and 2-nd magnetic integral
s\, median plane position\, sextupole integral. Vibrating current method (
multiple by wire self-resonant frequency) gives any integral with higher s
ensitivity. Pulse wire method is alternative to Hall-probe method.\n\nhttp
s://indico.inp.nsk.su/event/3/contributions/1162/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1162/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Vibrating wire magnetic field measuring technique
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1163@indico.inp.nsk.su
DESCRIPTION:Speakers: Artem Zorin (BINP)\nVibrating wire magnetic field me
asuring technique is a kind of current driven wire based magnetic measurem
ent system. Harmonic current is applied to thin wire strained within the w
iggler. The current frequency is multiple by wire self-resonant frequency.
If the magnetic field integral is non-zero\, the wire vibrates. Wire posi
tion sensors measure the deflection. The technique is very sensitive and a
llows to measure many integrals simultaneously.\n\nhttps://indico.inp.nsk.
su/event/3/contributions/1163/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1163/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pulsed wire method for magnetic field measurements
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1164@indico.inp.nsk.su
DESCRIPTION:Speakers: Artem Zorin (BINP)\nPulsed wire method is a kind of
current driven wire based magnetic measurement system. A current pulse is
applied to thin wire strained within the wiggler. Wire position sensors me
asure the deflection. This method may take the place of Hall-probe method\
, because it shows magnetic field charateristics in every point inside the
wiggler\, not only integral characteristics. And it requires only few mil
liseconds for measurement.\n\nhttps://indico.inp.nsk.su/event/3/contributi
ons/1164/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1164/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Formation of nanosized metal hydrosols under the influence of tera
hertz laser radiation
DTSTART;VALUE=DATE-TIME:20160706T102000Z
DTEND;VALUE=DATE-TIME:20160706T104000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1165@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexander Kozlov (Voevodsky Institute of chemical ki
netics and combustion SB RAS)\nThe present report describes a new phenomen
on - short-term exposure of water with focused terahertz radiation of free
electron laser leads to the formation of nanoparticle suspension (hydroso
l). Composition of the particles formed corresponds to the material of met
al containers used in the experiment. Fractional and elemental composition
of the particles was determined by atomic force (AFM)\, scanning electron
microscopy with elemental analyzer (SEM EDAX)\, and the results of mass s
pectrometry with inductively coupled plasma (ICP-MS). Hydrosols are techno
logically convenient form\, suitable for scientific and technological appl
ications which require uniform deposition and high catalytic activity\, th
ey are useful in medicine\, nonlinear optics\, as well as the alternate me
thod of sample preparation for chemical and elemental analysis.\n\nhttps:/
/indico.inp.nsk.su/event/3/contributions/1165/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1165/
END:VEVENT
BEGIN:VEVENT
SUMMARY:High temperature quasi stationary terahertz optical discharge on N
ovoFEL
DTSTART;VALUE=DATE-TIME:20160706T082000Z
DTEND;VALUE=DATE-TIME:20160706T084000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1166@indico.inp.nsk.su
DESCRIPTION:Speakers: Vitaly Kubarev (BINP)\nThreshold conditions\, plasma
parameters\, autooscillations and their stabilization in terahertz optica
l discharge on NovoFEL are considered in the report\n\nhttps://indico.inp.
nsk.su/event/3/contributions/1166/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1166/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Single-pulse high-resolution spectroscopy on NovoFEL: methods\, ap
plications and development
DTSTART;VALUE=DATE-TIME:20160706T053000Z
DTEND;VALUE=DATE-TIME:20160706T060000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1167@indico.inp.nsk.su
DESCRIPTION:Speakers: Vitaly Kubarev (BINP)\nMethods of single-pulse high-
resolution spectroscopy based on powerful tunable radiation of terahertz N
ovoFEL\, ultra-fast technique\, and strong magnetic field of superconducti
ng solenoid are presented in the report\n\nhttps://indico.inp.nsk.su/event
/3/contributions/1167/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1167/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Synchrotron radiation methods for registration of the ejection of
particles from the free surface of shock-loaded metals
DTSTART;VALUE=DATE-TIME:20160706T052000Z
DTEND;VALUE=DATE-TIME:20160706T054000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1168@indico.inp.nsk.su
DESCRIPTION:Speakers: Konstantin Ten (LIH SB RAS)\nWhen a strong shock wav
e leaves a metal\, flows of particles of different sizes are ejected from
the wave’s free surface (shock-wave "dusting"\, ejecta) [1\,2]. Unlike a
cumulative jet\, such a flow consists of separate particles having a size
of a few microns to hundreds of microns. It was assumed that there are al
so finer particles in such a flow\, but the existing techniques are not ab
le to resolve them.\n\nThis report presents the results of experiments usi
ng SR from the colliders VEPP-3 and VEPP-4 at BINP. Precision measurement
of transmitted SR (of an energy of 2 GeV on VEPP-3) was applied to explora
tion of microparticle flows from a free surface of various materials (copp
er\, tin\, and tantalum). Mass distributions along microjets originating f
rom micron-sized slits were obtained. Dynamic detection of small-angle X-r
ay scattering (SAXS) of synchrotron radiation (SR) from the collider VEPP-
4M (energy of 4 GeV) was implemented on the facility SYRAFEEMA (Synchrotro
n Radiation Facility for Exploring Energetic Materials). A technique of SA
XS measurement on this facility enables detection of nanoparticles ranging
in size from 4 to 200 nm. Flows of nanoparticles of about 100 nm in size
from a surface of smooth foil (tin and tantalum) affected by compressed HM
X were detected for the first time.\n\n**1**. V. A. Ogorodnikov\, A. G. Iv
anov\, A. L. Mikhailov\,\, N.I. Kryukov\, A.P. Tolochko\, V.A. Golubev. P
article ejection from the shocked free surface of metals and diagnostic me
thods for these particles // Combustion\, Explosion and Shock Waves\, 1998
\, v.34\, No 6\, pages 696-700. \n\n**2**. Thibaut De Resseguier\, Didier
Loison\, Emilien Lescoute\, Loic Signor\, Andre Dragon. Dynamic Fragmentat
ion of Laser Shock-melted metals: Some Experimental Advances. Journal of t
he Theoretical and Applied Mechanics\, 2010\, 48\, 4\, pp. 957-972\, Warsa
w.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1168/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1168/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Spatial microstructure of multilayered heterosystems\, containing
Ge quantum dots molecules in Si on the stages of their nucleation and grow
th by EXAFS spectroscopy
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1208@indico.inp.nsk.su
DESCRIPTION:Speakers: Simon Erenburg (Nikolaev Institute of Inorganic Chem
istry SB RAS\, Budker Institute of Nuclear Physics SB RAS)\nThe systems wi
th interacting quantum dots (QDs) (in particular\, quantum rings (QRs) or
quantum dots molecules (QDMs) have attracted much attention both as groun
d for studying coupling and energy transfer processes between “artificia
l atoms” and as new systems\, which substantially extend the range of p
ossible applications of QDs.\n\nSome of the EXAFS spectra above Ge*K*- edg
es were measured at the VEPP-3 storage ring (beamline 8) of Siberian Synch
rotron and Terahertz Radiation Center (SSTRC) of the Budker Institute of N
uclear Physics (BINP SB RAS\, Novosibirsk\, Russia). Other part of the spe
ctra was measured at the ESRF (Grenoble\, France). The high energy resolut
ion fluorescence detected HERFD-XANES and EXAFS experiments have been perf
ormed at 12K at the beamline ID26 or ID20 equipped by 5-analyzer x-ray emi
ssion spectrometer. \n\nMicrostructural parameters (interatomic distances\
, coordination numbers\, and Debye–Waller factors) were determined by me
ans of EXAFS spectroscopy consistently on the stages of nucleation and gr
owth multilayered heterosystems\, containing GeSi quantum dots molecules
(QDMs). The relationship between the variations in microstructural paramet
ers and the morphology of superlattices and symmetric assembles of QDs was
established.\n\nIn accordance with the results obtained previously for qu
antum dots SiGe it was found for QDMs\, that distortion at the interfaces
leads to a decrease of Ge-Ge interatomic distances on $\\sim0.03$ Å. It
was established for the samples with stoichiometric formula $Ge_{x}Si_{1-x
}$\, (0.25 \n\nhttps://indico.inp.nsk.su/event/3/contributions/1208/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1208/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The study of the nonthermal effects of terahertz radiation on livi
ng systems.
DTSTART;VALUE=DATE-TIME:20160705T044000Z
DTEND;VALUE=DATE-TIME:20160705T050000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1169@indico.inp.nsk.su
DESCRIPTION:Speakers: Sergey Peltek (Institute of Cytology and Genetics SB
RAS (Novosibirsk\, Russia))\nMescheryakova I.A. 1\, Demidova E.V. 1\, Go
ryachkovskaya T.N. 1\, Demidov E.A. 1\, Bryanskaya A.V. 1\, Sergeeva S.V.
1\, Kiselev S.L. 3\, Lagarkova M.A. 3\, Kulipanov G.N. 2\, Semenov A.I.2\
, Vinokurov N.A.2\, Kolchanov N.A.1\, Popik V.M.2\, Peltek S.E.1\n1 The In
stitute of Cytology and Genetics The Siberian Branch of the Russian Academ
y of Sciences\; 2 Budker Institute of Nuclear Physics the Siberian Branch
of the Russian Academy of Sciences\; 3 Vavilov Institute of General Geneti
cs\, RAS\, Moscow\, \n\nIn connection with the increasingly widespread use
of terahertz radiation in the practice and the lack of consensus on the b
iological effects of terahertz radiation\, it seems urgent to study in det
ail the effects of such exposure as model organisms\, including bacteria a
nd human cells.\n\nWe studied the impact of terahertz radiation on E. coli
biosensor cells containing plasmids with promoters of stress-sensitive ge
nes controlling the expression of GFP. GFP level was measured by fluoromet
ry. The impact of terahertz radiation was nonthermal\, i.e. special care w
as taken to keep specimen temperature in the 35±2 °С range during irrad
iation so that heat shock genes would not be induced. GFP level was measur
ed by fluorometry.\n\nWe found that terahertz radiation activates genes as
sociated with oxidative stress response. Results of Ames test and SOS-chro
motest indicate that terahertz radiation doses tested no direct action on
DNA mutagenic and does not genotoxic.\n\nProteomic analysis\, it was found
that exposure to E. coli cells terahertz radiation leads to increased exp
ression of 14 genes of rapid response. Among these genes discovered glutam
ine synthetase gene (glnA). Based glnA gene promoter designed biosensor se
nsitive to the effects of terahertz radiation.\nHuman embryonic stem cells
(hESCs) are extremely sensitive to environmental stimuli\, and we therefo
re utilised this cell model to investigate the non-thermal effects of THz
irradiation. We studied DNA damage and transcriptome responses in hESCs ex
posed to narrow-band THz radiation (2.3 THz) under strict temperature cont
rol.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1169/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1169/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Nanodomain states of strontium ferrites and their structural trans
formations
DTSTART;VALUE=DATE-TIME:20160706T092000Z
DTEND;VALUE=DATE-TIME:20160706T094000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1170@indico.inp.nsk.su
DESCRIPTION:Speakers: Uliana Ancharova (ISSCM SB RAS)\nDepending on substi
tution degree and external conditions strongly-nonstoichiometric strontium
ferrites have certain features of the local structure [1-3]. It is relate
d to extremely high amount of oxygen vacancies\, laying beyond the homogen
eity region of perovskite or any of vacancy-ordered phases. That vacancy c
oncentration tend to be adopted by the structure through formation of loca
l ordering of the vacancies and phase separation with forming nano-heterog
eneous structures inside the perovskite matrix. Ion-transport functional p
roperties of nano-heterogeneous materials are primarily related to their l
ocal structure\, which differ from the structure averaged over the entire
crystal.\n\n*In situ* XRD experiments show the transformation of the struc
ture under low oxygen partial pressure at different temperatures (up to 90
0ºC). Phase composition and structure parameters are in strong correlatio
n to equilibrium oxygen content at different environment conditions.\n\nX-
ray diffraction experiments were carried out with involvement of equipment
belonging to the shared research center SSTRC\, BINP SB RAS.\n\n[1] U.V.
Ancharova\, Domain structure investigation of strontium ferrites/cobaltite
s // Powder Diffraction Journal - 2013. - 28. - S2. - P.S51-S64.\n\n[2] U.
V. Ancharova\, S.V. Cherepanova\, Nano-domain states of strontium ferrites
SrFe1−yMyO2.5+x (M=V\, Mo\; y≤0.1\; x≤0.2) // Journal of Solid Stat
e Chemistry\, - 2015. - V.225. - P.410-416.\n\n[3] У.В. Анчарова
\, С.В. Черепанова\, С.А. Петров\, Способы ад
аптации высокой концентрации кислородн
ых вакансий в нестехиометрических ферри
тах стронция // Журнал Структурной Химии\
, - 2016. - in press.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1
170/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1170/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Intensity and timing jitter compensated ultra-fast experiments at
accelerator-driven photonsources
DTSTART;VALUE=DATE-TIME:20160706T094000Z
DTEND;VALUE=DATE-TIME:20160706T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1171@indico.inp.nsk.su
DESCRIPTION:Speakers: Sergey Kovalev (HZDR)\nTiming jitter and power insta
bilities are crucial parameters which greatly reduce the applicability of
accelerator driven light sources for time-resolved experiments. In this c
ontribution we present a technique that allows achieving few 10 fs time-re
solution in experiments operating at cw repetition rates of up to 100 kHz
at presents of timing jitter in order of ps. As we show on the example of
a benchmark experiment based on THz driven magnetization dynamics\, our me
thod provides a sensitivity or dynamic range that is comparable to all-las
er based techniques. Moreover we show how the time and power instabilities
in combination with a high repetition rate can be turned from a problem i
nto a favor an advantage and can be \nutilized as an ultrafast delay line
and attenuator. Our method employs a fs-level arrival time monitor based
on electro-optic sampling of residual pulses from a coherent diffraction r
adiatior and a fast THz detector allowing for pulse to pulse detection of
arrival time and pump pulse intensity. The monitor can operate at high rep
etition rates (presently up to a few 100 kHz) and low electron bunch charg
es (sub pC). The prototype device has been tested at the quasi CW linear R
F electron accelerator (ELBE). Despite timing jitter of 1.5 ps (FWHM) and
15% intensity fluctuations of the pump pulse intensity\, a temporal resolu
tion of around 20 fs (peak-to-peak) and a dynamic range of 100 dB was achi
eved. Our method has high potential to provide few fs level synchronizatio
n on next generation large scale X-ray photon sources based on high repeti
tion rate electron accelerators such as LCLSII. A demonstrator aiming at o
peration up to 4.7 MHz is under development for the European X-FEL within
the frame of a recently granted EU project within the HORIZON2020 program.
\n\nhttps://indico.inp.nsk.su/event/3/contributions/1171/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1171/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Obtaining Soft X-ray Emission and Absorption Spectra using SR from
the VEPP-4 storage ring on the metrology station "Cosmos"
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1172@indico.inp.nsk.su
DESCRIPTION:Speakers: Evgeniy Korotaev (Nikolaev Institute of Inorganic Ch
emistry of the Siberian Branch of the Russian Academy of Sciences)\nX-ray
spectroscopy is powerful tool for investigation of the electronic structu
re of functional materials. X-ray emission spectra (XES) corresponding tra
nsition from valence orbitals to core levels allows to obtain information
about atomic partial densities of occupied states of the elements in compl
ex chemical compounds. X-ray absorption near edge structure (XANES) allows
to study atomic partial densities of unoccupied states.\nUsage of synchro
tron radiation for obtaining XES and XANES spectra is to essentially incre
ase quality of experimental data.\nThe experimental equipment of the "Cosm
os"- synchrotron station was adjusted for obtaining soft XES-spectra of re
ference samples (quartz glass\, aluminum and copper foils). In the present
work were used two different optic schemes: flat (Bragg-scheme) and cylin
drically bent crystals (Iogan’s scheme). Using the cylindrically bent
crystal geometry has shown best result in obtaining soft XES-spectra.\nAls
o it was a special interest to obtain soft X-ray absorption spectra. For o
btaining such spectra the double crystal scheme was used. Thus fine struct
ure of soft X-ray absorption spectra was recorded for reference samples (a
luminum\, copper foils).\nExperimental XES and XANES spectra were compared
with the spectra obtained on a laboratory X-ray spectrometer and the resu
lts of the quantum-chemical calculations.\nThe authors are grateful to pro
f. L.N. Mazalov for useful discussions of experimental data.\n\nhttps://in
dico.inp.nsk.su/event/3/contributions/1172/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1172/
END:VEVENT
BEGIN:VEVENT
SUMMARY:SAXS study of Escherichia coli Dihydrolipoamide Dehydrogenase: str
uctural characteristics and molecular docking
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1173@indico.inp.nsk.su
DESCRIPTION:Speakers: Eleonora Shtykova (1. Shubnikov Institute of Crystal
lography of Federal Scientific Research Centre “Crystallography and Phot
onics” of Russian Academy of Sciences\, Moscow\, 119333 Russia\; 2. Mosc
ow State University\, Moscow\, 119992 Russia)\nDihydrolipoamide dehydrogen
ase from Escherichia coli (LpD) is a bacterial enzyme that is involved in
three different multi-enzyme complexes that catalyze similar decarboxylati
on reactions of 2-oxoacids. All of these complexes comprise three enzymes
known as Е1\, Е2\, and Е3\, where LpD is the Е3 component and the E2 s
ubunit is used by LpD as the lipoamide-containing protein substrate. The
Е1 and Е2 subunits have different structures in different complexes\, wh
ereas the Е3 protein is essentially the same in all of the complexes [1
–4]. The pyruvate dehydrogenase complex from Gram-negative bacteria (for
example\, from E. coli) is composed of 24 E1 subunits and 24 E2 subunits\
, whereas the multiplicity of E3 remains unknown. According to different e
stimates\, there are 12 or 24 E3 subunits\; i.e.\, E3 may consist of six d
imers or six tetramers. It was shown that E. coli LpD exists as a dimer i
n the crystalline state [5]. However\, the solution structure of this prot
ein was unknown. The aim of the present study is to investigate the behavi
or of LpD in solution\, i.e.\, under near-physiological conditions\, by sm
all-angle X-ray scattering (SAXS) and complementary methods. Using modern
techniques for the interpretation of SAXS data and analytical ultracentrif
ugation we determined that in solution LpD exists as an equilibrium mixtur
e of a dimer and a tetramer. The tetramer structure was determined by mod
eling SAXS data and molecular docking. The results obtained by these two m
ethods correlate well with each other. It was shown that there is the rela
tionship between the oligomerization of the protein in solution and its fu
nctional properties. In particular\, the possible flexibility of the tetra
mer follows from the stoichiometric and functional demands of the multienz
yme complexes containing LpD as a component.\n\nThis work was supported in
part by Russian Foundation for Basic Researches (projects 15-54-74002 EMB
L_а \, 15-04-01406\, 15-04-00563).\n\nReferences\n[1] R. H. Behall\, M. S
. De Buysere\, B. Demeler\, et al.\, J.Biol. Chem. 269\, 31372 (1994).\n[2
] H. Lindsay\, E. Beaumont\, S. D. Richards\, et al.\, J. Biol. Chem. 275\
, 36665 (2000).\n[3] W. Wei\, H. Li\, N. Nemeria\, and F. Jordan\, Protein
Expr. Purif. 28\, 140 (2003).\n[4] M. A. Moxley\, D. A. Beard\, and J. N.
Bazil\, Biophys. J. 107\, 2993 (2014).\n[5] K. Chandrasekhar\, J. Wang\,
P. Arjunan\, et al.\, J. Biolog. Chem. 288\, 15402 (2013).\n\nhttps://indi
co.inp.nsk.su/event/3/contributions/1173/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1173/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Small-Angle X-Ray Scattering Study of Carbosilane Dendrimers in He
xane Solution
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1174@indico.inp.nsk.su
DESCRIPTION:Speakers: Eleonora Shtykova (1. IC RAS\, Moscow\, Russia\, 2.
MSU\, Moscow\, Russia)\nDendrimers are three-dimensional\, highly branched
\, monodisperse macromolecules with a well-defined regular structure. They
possess unique properties due to its size\, composition and controlled fu
nctionalization. Among the variety of dendrimers\, carbosilane dendrimeric
macromolecules attracted great attention for their reactive functional gr
oups\, chemical inertness of the molecular skeleton and possibility of med
ical and biological applications [1\, 2]. \nIn the present work three-dime
nsional structure of monodisperse carbosilane dendrimers of zero\, third a
nd sixth generations were studied by small-angle X-ray scattering (SAXS) i
n hexane solution. Using modern methods of SAXS data interpretation\, incl
uding procedure of ab initio modeling\, spherical shape and internal archi
tecture of the dendrimers were revealed depending on the generation number
and on the number of cyclosiloxane end groups constituting a shell of the
macromolecules. With the help of a computer simulation a possibility of s
hape reconstruction of the dendrimer molecules in clusters has been consid
ered\, and the analysis of the intermolecular interaction of the dendrimer
s in solution was performed applying the latest developments of the method
of molecular tectonics.\n\nThis work was supported in part by Russian Fou
ndation for Basic Researches (projects 16-03-00379 and 16-03-00375)\nRefer
ences\n[1] Dendrimers and other dendritic polymers / Ed. by J.M. Frechet\,
D.A. Tomalia. - N.Y.: Wiley & Sons\, 2001.\n[2] Kim Y.H.\, Webster O.W.\
, J. Am. Chem. Soc.\, 1990\, 112\, 4592.\n\nhttps://indico.inp.nsk.su/even
t/3/contributions/1174/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1174/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ellipsometric measurement of the complex refractive index of liqui
ds in the terahertz range
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1175@indico.inp.nsk.su
DESCRIPTION:Speakers: Ivan Azarov (Rzhanov Institute of Semiconductor Phys
ics)\nComplex refractive index of various liquids has been measured in the
THz range using the ellipsometric measurement system with an internal re
flection silicon-prism with the Novosibirsk free electron laser being a s
ource of monochromatic radiation . The measurement technique has been opti
mized both theoretically and experimentally for water solutions. Precision
of the measurement of the absolute values of the real and imaginary parts
of the refractive index (n\, k) equal to 0.01 is achieved experimentally.
\n\nhttps://indico.inp.nsk.su/event/3/contributions/1175/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1175/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Unusual Properties of Structural Characteristics of Potato Virus A
Coat Protein in Solution Revealed by SAXS
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1176@indico.inp.nsk.su
DESCRIPTION:Speakers: Eleonora Shtykova (Shubnikov Institute of Crystallog
raphy of Federal Scientific Research Centre “Crystallography and Photoni
cs” of Russian Academy of Sciences)\nStructural analysis of the Potato V
irus A Coat Protein (PVA CP) in solution was performed by small angle X-ra
y scattering (SAXS). SAXS experiments were carried out using synchrotron r
adiation at the P12 beamline at the Petra III storage ring (DESY\, Hamburg
). Modern techniques for interpretation of scattering data and structural
modeling\, including ab initio protocol\, have been applied in the present
work [1]. Obtained values of radii of gyration (Rg =8.9 ± 0.1 nm for PVA
CP at pH 7.8 and Rg=8.5 ± 0.1 nm for this protein at pH10.5) are too lar
ge to be a characteristic of the isolated protein macromolecule with molec
ular mass of 30.26 kDa calculated from the amino acid sequence of PVA CP.
The average molecular masses (MMs) of the solutes were obtained by us (i)
from the extrapolated I(0) and (ii) from the excluded (Porod) volumes Vp
of the species. MMs calculated by these 2 independent methods clearly ind
icate formation of large aggregates containing dozens (30-60) of individua
l PVA CP macromolecules. Thus\, the overall parameters (Rg\, excluded Poro
d volume\, MMs) point to the existence in the solution of large particles
consisting of many protein macromolecules. On the other hand\, Porod plots
as well as Kratky plots revealed rather compact particles with definite s
hapes though less expressed for PVA CP at higher pH. It means that possibl
y we observed not aggregates\, which as a rule do not possess a certain sh
ape\, but we can see a formation of some kind of ordered structures\, most
possible short virus-like particles (VLPs). The structure and overall cha
racteristics of the VLPs depend strongly on such solution condition as pH:
while a scattering curve from the sample at pH 7.8 demonstrates intensity
pattern characteristic for a specific compact scattering object\, SAXS cu
rve from PVA CP changes dramatically at pH 10.5 and corresponds to a partl
y disordered body without clearly defined boundaries: the CP associates at
pH 7.8 are more compact then those at pH 10.8. The shape of PVA CP at low
er pH obtained by ab initio method is closed to a cylinder\, thereby repro
ducing the shape of the virus\, i.e. this self-assembling in solution to s
hort VLP is an intrinsic biological property of the PVA CP allowing it to
create an envelope to protect genetic material of the virus. Increasing pH
leads to a partial distortion of this virus-like ensemble: the whole shap
e of the PVA CP associates at pH 10.5 becomes loose and splits into separa
te spherical parts. Thus\, according to McDonald and Bancroft [2\, 3]\, PV
Y CP at pH 10.5 disintegrates into monomers\, destroying the structure of
the VLP and pointing to the way of the virus deactivation.\nThis work was
supported in part by Russian Foundation for Basic Researches (projects 15-
54-74002 EMBL\, 15-04-01406\, 16-03-00375 and 16-04-00563).\nReferences\n[
1] Blanchet\, C.E. and Svergun\, D.I. (2013)\, Annu. Rev. Phys. Chem. 64\,
37-54\n[2] Mc Donald JG\, Beveridge TJ\, Bancroft JB.(1976)\, Virology\,
69 (1)\, 327-331.\n[3] Mc Donald JG and Bancroft JB. (1977)\, J. Gen.Virol
.\, 35\, 261-263.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1176/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1176/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Characterization and transformation of Terahertz Bessel beams with
angular orbital momentum
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1177@indico.inp.nsk.su
DESCRIPTION:Speakers: Natalia Osintseva (Budker Institute of Nuclear Ph
ysics)\, Yulia Choporova (Budker Institute of Nuclear Physics)\nRecently\,
using silicon binary axicons with spiral zones\, we transformed a NovoFEL
Gaussian beam into Bessel beams with orbital angular momenta l = ±1 and
l = ±2. In this paper we study the propagation of beams through random me
diа and investigate optical systems which allow extending the length of n
on-diffractive beam propagation.\n\nhttps://indico.inp.nsk.su/event/3/cont
ributions/1177/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1177/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The role of cholesterol recognising amino acid consensuses on amph
ipathic structures of matrix proteins in raft membrane organisation of som
e enveloped viruses
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1178@indico.inp.nsk.su
DESCRIPTION:Speakers: Eleonora Shtykova (Shubnikov Institute of Crystallog
raphy of Federal Scientific Research Centre “Crystallography and Photoni
cs” of Russian Academy of Sciences)\nWe have recently revealed the amphi
pathicity of six CRAC containing alpha-helices of influenza virus (IFV) M1
protein\, and suggest that the phenomenon may play a role in supporting b
oth raft structure of the membrane and organising regular structure the M1
protein shell in the virion [1]. Computer modelling and comparative analy
sing 3D structures of the matrix proteins was carried out for three taxono
mically different enveloped viruses with raft-type membranes\, IFV\, Newca
stle disease virus (NDV)\, and Human immunodeficiency virus (HIV)\, to dis
close amphipathic CRAC containing 3D configurations in their structures\,
and to identify putative motifs\, which may be specifically involved in th
eir interactions with raft membranes. Common structural feature of all thr
ee proteins was found to be the amphipathic structure of their CRAC motifs
\, and localization of the outer CRAC regions on the opposite sides of the
ir globules. Notably\, in contrast to IFV M1\, one CRAC motif on NDV M app
eared on the amphipathic beta-sheet structure. To verify our approach we
also comparatively tested the M protein structure of the non-raft vesicula
r stomatitis virus: the disclosed surface CRAC motif appeared no amphipath
ic configuration. Small-angle X-ray structural analysis (SAXS) of IFV and
NDV matrix proteins in solution gave further evidence in support of our co
nclusions. M1 protein exists in solution as a monomer with a compact NM-fr
agment and an extended and partially flexible C-terminal domain. SAXS anal
ysis demonstrates that CRAC motifs of the M1 protein are located on the op
posite sides of the NM-fragment perpendicular to the C-domain. NDV M prote
in dimerizes in solution\, and its surface CRAC motifs have anti-parallel
location on the opposite sides of the dimer. Thus\, such localization of C
RAC motifs of two different proteins with two different organizations in s
olution allows these matrix proteins to interact both with the membrane an
d with the internal components of the virus. Moreover\, our results sugges
t that oppositely situated CRAC motifs in pairs of both monomeric IFV M1 a
nd dimeric NDV M in the virions may serve as anchors between two neighbour
ing raft platforms consolidating and fastening the envelopes of the viruse
s. CRAC motifs on the surface of these proteins may be involved in arrangi
ng their regular oligomeric structures both in the virions and in solution
.\nThis work was supported in part by Russian Foundation for Basic Researc
hes (projects 15-54-74002 EMBL and 16-04-00563)\nReferences\n1. T. Tsfasma
n\, V. Kost\, S. Markushin\, V. Lotte\, I. Koptiaeva\, E. Bogacheva\, L. B
aratova\, V. Radyukhin. Amphipathic alpha-helices and putative cholesterol
binding domains of the influenza virus matrix M1 protein are crucial for
virion structure organization\, Virus Research\, 2015\, v. 210\, pp. 114
–118.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1178/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1178/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pump-probe setup for far-infrared subnanosecond time-resolved spec
troscopy at the Novosibirsk free electron laser
DTSTART;VALUE=DATE-TIME:20160706T070000Z
DTEND;VALUE=DATE-TIME:20160706T072000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1179@indico.inp.nsk.su
DESCRIPTION:Speakers: Yulia Choporova (Budker Institute of Nuclear Physics
)\nA one-color pump-probe system has been commissioned at the Novosibirsk
free electron laser facility. Results of current experiments on the study
of dynamical absorption of semiconductors will be described.\n\nhttps://in
dico.inp.nsk.su/event/3/contributions/1179/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1179/
END:VEVENT
BEGIN:VEVENT
SUMMARY:New Insights into Nature of Self-Assembly of Influenza А Virus Ma
trix Protein M1 at Different Conditions: SAXS & AFM Study\, and Modeling
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1180@indico.inp.nsk.su
DESCRIPTION:Speakers: Eleonora Shtykova (Shubnikov Institute of Crystallog
raphy of Federal Scientific Research Centre “Crystallography and Photoni
cs” of Russian Academy of Sciences)\nInfluenza A viruses are important p
athogens that still rank among the major global health problems. Matrix pr
otein M1 in the virus particles is one of the most important and abundant
proteins broadly involved in essential processes of the viral life cycle.
It makes the structural investigation of the M1 protein particularly impo
rtant. We employed synchrotron small-angle X-ray scattering (SAXS) and ato
mic force microscopy (AFM) to study the structure of M1 at different condi
tions. The low-resolution structural models built from the SAXS data revea
l a structurally anisotropic M1 molecule consisting of a compact NM-fragme
nt and an extended and partially flexible C-terminal domain [1]. We demons
trated also that even at low pH the M1 monomers co-exist in solution with
a small fraction of large clusters possessing a layered architecture simil
ar to that observed in the authentic influenza virions. AFM analysis on a
lipid-like negatively charged surface reveals that M1 forms ordered stripe
s correlating well with the clusters observed by SAXS [1]. Low pH conditio
n occurs at the very beginning of cell infection leading to an acid-trigge
red fusion of the viral membrane. Moreover\, change of pH was found to ser
ve as a impuls allowing M1 to carry out its multiple functions in the unco
ating\, nuclear transport\, and assembly of the viral ribonucleocapsid [2]
. Revealed by us helix-like shapes could be treated as pre-matrix protein
superstructures\, whose formation is an intrinsic biological property of t
he M1 protein. It can be assumed\, however\, that the oligomerization of M
1 should strongly depend on pH and on the protein charge. That is why it w
as important to analyse the structure and self-assembly of M1 at gradually
changing pH (up to the neutral pH condition) in solution and on the bare
mica surface using SAXS and AFM\, correspondingly. We found that the oligo
merization processes occur in a similar way in the solution and on the sub
strate\, and quantitatively described these processes. Moreover\, pH 6.0 w
as found to be the condition at which binding between M1 molecules starts
to break. Our results provide new insights into the mechanism of M1 to for
m matrix and virus-like particles alone without partners and give a basis
for a further analysis of the hierarchy of M1 in the virus life cycle.\n\n
This work was supported in part by Russian Foundation for Basic Researches
(projects 15-54-74002 EMBL and 16-04-00563) \n\nReferences\n1. E. Shty
kova et al. PLoS One\, 8\, (2013) e82431.\n2. M. Bu et al. J. Virology\
, 70\, (1996) 8391-8401.\n\nhttps://indico.inp.nsk.su/event/3/contribution
s/1180/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1180/
END:VEVENT
BEGIN:VEVENT
SUMMARY:THE USE OF LABORATORY-BASED X-RAY COMPUTED TOMOGRAPHY FOR THE DIAG
NOSTICS OF X-RAY REFRACTIVE OPTICS
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1181@indico.inp.nsk.su
DESCRIPTION:Speakers: Anton Narikovich (Imanuel Kant Baltic Federal Univer
sity)\nA promising direction of development of modern X-ray optics is an o
ptical system\, based on the compound refractive lenses (CRLs). Main appli
cations of CRLs are microfocusing and X-ray microscopy. In order to improv
e a technology of X-ray optics manufacturing it is urgent to develop an ef
fective approach of precise nondestructive CRL metrology.\nAt this work\,
we report the assessment of the efficiency of non-destructive inspection
– a high-resolution x-ray computed tomography (HRXCT). This technique al
lows to realize non-destructive testing irregularities\, the presence of v
oids\, inclusions in lenses material and at the same time to analyze the s
hape and geometric parameters: the coaxiality\, the distance between the r
efracting surfaces and shape of refractive surfaces.\nHRXCT was performed
using the X-ray inspection system YXLON designed for generating high-quali
ty X-ray images with the 1 µm resolution. We present the CT imaging resul
ts of lenses made of high-purity aluminum with the parabola apex radii of
50 µm.\nComparing the obtained images with specified requirements of the
geometrical characteristics of the lenses\, the quality of the refractive
surface and internal size of defects allows us to estimate the lens manufa
cturing quality.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1181/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1181/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Development of laboratory Metrology for X-ray refractive lenses
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1182@indico.inp.nsk.su
DESCRIPTION:Speakers: Dmitrii Zverev (Immanuel Kant Baltic Federal Univers
ity)\nThe focusing of X-ray synchrotron radiation is one of the main probl
ems of X-ray optics. Development of compound refractive lenses (CRL)\, pro
posed twenty years ago [1]\, should be considered as one of the promising
solution to this problem. Despite the successful development of refractive
optics for X-ray nano-focusing [2] and high-resolution X-ray microscopy [
3] the diffraction resolution limit for CRL has not been achieved. As alre
ady noted [4]\, imaging properties of the CRL depend on the refractive pro
perties of the used materials\, and on the accuracy of the manufacturing t
echnique of the lens optical surface (figure errors). To improve the surfa
ce quality\, dedicated metrological methods to measure geometric character
istics of the CRL parabolic profile are required.\n\nIn this work aluminum
and beryllium refractive lenses with a parabolic profile (small radii of
curvature R = 50 ÷ 1000 μm) made by pressing technique was examined. A c
omparison of different metrological methods to study lenses profile is pre
sented. Proposed comprehensive laboratory metrological approaches allow to
control the quality of the lens profile and to make the input quality con
trol of press tools.\n\n\n1. A. Snigirev\, V. Kohn\, I. Snigireva & B. Len
geler // Nature 384\, 49 - 51 (07 November 1996).\n2. I. Snigireva\, G.B.M
. Vaughan\, A. Snigirev // AIP Conf. Proc. 2011. V. 1365. P. 188.\n3. C.G.
Schroer\, O. Kurapova\, J. Patommel\, et al. // Proc. 8th Int. Conf. X_ra
y Microscopy. IPAP Conf. Ser. 7. P. 94.\n4. I.I. Lyatun\, A.Yu. Goikhman\,
P.A. Ershov\, I.I. Snigireva\, A.A. Snigirev\, “On the Problem of the M
etrology of Refractive X-ray Optics”// Journal of Surface Investigation.
X-ray\, Synchrotron and Neutron Techniques\, 2015\, Vol. 9\, No. 3\, pp.
446–450.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1182/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1182/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Nanostructural ordering of epithelial tissue of silk gland of Anth
eraea mylitta silkworm
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1183@indico.inp.nsk.su
DESCRIPTION:Speakers: Alvina Vazina (Institute of theoretical and experime
ntal biophysics\, RAS)\nX-ray diffraction study of epithelial tissue of si
lk gland of Indian domestic Antheraea mylitta silkworm was carry out on th
e small-angle station DIKSI of the Siberia-2 storage ring (NRC “Kurchato
v institute”\, Moscow). \nThe silk gland is a unique pair organ of inter
nal secretion in diameter 2 mm and length about 1 metre\, that ten times s
urpasses the size of the larva of a silkworm. In an active phase of cocoon
ing all three departments of a glan (anterior\, middle\, and posterior) ar
e filled by jelly-like substratum from fibroin and sericin proteins which
form a silk thread under the influence of mechanical forces (pulling) and
specific geometry of keratin segment of gland. Samples of various departme
nts of a silk gland have been allocated from a larva by soft preparation m
ethods\, and after that dried up at a room temperature under cargo. \nX-r
ay patterns of all departments of a silk gland are characteristic for epit
helial tissues: in a range of 1-5 nm its show several Debay’ rings with
the basic period of identity of 4.72 nm. In our earlier investigations of
epithelial tissues of animals and human the series of diffraction Debay’
reflections at the spacing of 4.65 (± 0.15) nm were attributed to proteo
glycan structures of extracellular matrix [A.Vazina et al.: NIM (2001) A47
0\; NIM (2005) A543\; NIM (2009) A603\; Glass Phys. Chem. (2007) 33]. Thus
\, this periodicity is a nanostructural invariant of proteoglycan structur
es of epithelial tissues of animals\, human\, and insect also.\n\nhttps://
indico.inp.nsk.su/event/3/contributions/1183/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1183/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Nanostructural study of human tumour transformed tissues by X-ray
diffraction methods using synchrotron radiation
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1184@indico.inp.nsk.su
DESCRIPTION:Speakers: Alvina Vazina (Institute of theoretical and experime
ntal biophysics\, RAS)\nThe work is dedicated to investigating the nanostr
uctural organization of proteoglycans in different physiological states of
biological tissues of human and animals. \nExperimental samples of human
tissues obtained during biopsies\, surgeries and pathologoanatomic revisio
ns\; samples of breast cancer tissue were obtained from mammary gland divi
sion of Blokhin’s Onkological Scientific Center of Russian Ministry of H
ealth. We used also unique collection of tumor transformed epithelial tiss
ues from respiratory tracts of liquidators engaged in elimination of the d
isaster sequels on the Chernobyl A-plant obtained from Pulmonogical Resear
ch Institute. X-ray diffraction and fluorescence study of biological tissu
es with using synchrotron radiation were carried out on the channel K1.3 o
f the “Siberia-2” storage ring at NRC “Kurchatovsky Institute”\, M
oscow (on the constructed and created by us small-angle stations DICSI) an
d on the channel 3b of VEPP-3 at INP SD RAS\, Novosibirsk\, and also on SA
XS/WAXS station of European Synchrotron Radiation Facility at Grenoble\, F
rance.\nSmall-angle X-ray patterns of epithelial tissue\, both intact and
pathologically transformed\, display a large number of sharp diffraction r
ings at spacing of 4.5 nm and its higher orders caused by the proteoglycan
s of extracellular matrix of tissue. The period of identity at spacing of
4.65 (± 0.15) nm is attributed by us to regular attachment of olygosaccha
ride chains to the protein core of giant proteoglycan molecules [A.A.Vazin
a et al.\, NIM\, 2005\, A543\, 297-301]. A correlation between the integra
ted intensity of X-ray patterns and elemental content of tissue is observe
d. It is experimentally shown that the structure of proteoglycans can be r
eversibly transformed by metal cations and chelating agents\, and that cal
cium is the major element in the mineral composition of tissue.\nIn cancer
transformed tissues intensity of diffuse scattering and diffraction rings
of 4.5 nm varies in a wide range and correlates with change of calcium co
ntent in the diseased tissues\, a significant change in elemental content
is detected\, up to 200 times increase in the concentration of calcium is
found. The final stage of disease is characterized by a significant increa
se in small-angle diffuse scattering\; Debye rings are never registered. T
reating the tissue with chelating agents such as EGTA and EDTA\, in this c
ase turns out to be ineffective\, suggesting the irreversibility of the st
ructural transformation of the extracellular matrix.\nThus\, the problem o
f cancerogenesis should be looked at in two aspects: investigation of the
mechanisms of normal cell transformation which is initiated by DNA damage
(mutations)\, and the stages of tumor progression\, processes of malignant
cell proliferation\, invasion and metastasis which lead to numerous malig
nant tumors. X-ray study of tissues indicates that it may be possible to u
se diffraction characteristics of proteoglycan structures as novel markers
of pathological transformation of tissues.\nThe research was supported by
RFBR-Moscow region Grant #14-44-03667.\n\nhttps://indico.inp.nsk.su/event
/3/contributions/1184/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1184/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The X-FEL quadrupole with gradient 100 T/m
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1185@indico.inp.nsk.su
DESCRIPTION:Speakers: Ivan Okunev (BINP)\nAbstract - The paper describes X
-FEL quadrupole with gradient 100 T/m. These quadrupole magnets are design
ed for installation in the free space between the XFEL undulators. In orde
r to maintain the high quality of the electron beam at an energy of 10 - 2
0 GeV\, requiring high stability of the magnetic axis of the lens. The ava
ilable size of the aperture of the lens is R = 8 mm. Stability of the quad
rupole magnetic axis better than 5 um for ±10% of a gradient range\, good
quality of the magnetic field ΔВ/В \n\nhttps://indico.inp.nsk.su/event
/3/contributions/1185/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1185/
END:VEVENT
BEGIN:VEVENT
SUMMARY:My profession is using of synchrotron radiation in the structural
biology of tissue
DTSTART;VALUE=DATE-TIME:20160705T020000Z
DTEND;VALUE=DATE-TIME:20160705T024000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1186@indico.inp.nsk.su
DESCRIPTION:Speakers: Alvina Vazina (Institute of theoretical and experime
ntal biophysics\, RAS)\nIn this report the results of long-term works - mo
re than 40 years - in the field of structural biology of tissue with synch
rotron radiation (SR) usage will be presented. \nWe were pioneers in the f
ield of SR use for nanostructural researches of biological tissues. C.S. H
olmes was the first to demonstrate the advantages of SR in studying the st
ructure of biological objects in 1971 on the DESY station (Hamburg). We be
gan to conduct systematic experimental works with SR in 1972. At that time
\, there were only two accelerators available for use as sources of SR in
the X-ray range: the ARUS synchrotron at the Yerevan Institute of Physics\
, and the VEPP-3 storage ring at the Budker Institute of Nuclear Physics i
n Novosibirsk\, which is still a world-class experimental SR site. \nThe c
reation and development of a method for high-speed small-angle X-ray diffr
actometry must be considered a fundamental methodological success of this
period\, since the minimum exposition time was reduced to a fraction of a
second. Difraction cinema for the first time has been created by the large
team of scientists from Novosibirsk and Pushchino\, which for many years
ranked ahead of other laboratories abroad. Last decade works are conducted
on the small-angle stations DIKSI (Siberia-2\, NRC «Kurchatov institute
»\, Moscow).\nSR is promising for application in structural biology. Spec
ific features of SR (relatively high intensity\, broad radiation spectrum\
, and coherence) allow us to obtain structural data on objects whose sizes
range from fractions of a nanometer to several centimeters. In living sys
tems\, we can study the functional range from single molecules to cells\,
tissues\, and even organs\, so that the object can be characterized compre
hensively.\nThe research was supported by RFBR-Moscow region Grant #14-44-
03667.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1186/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1186/
END:VEVENT
BEGIN:VEVENT
SUMMARY:SRXRF STUDY OF CHEMICAL ELEMENTS CONTENT IN THE ATHEROSCLEROTIC P
LAQUE OF HEART VESSELS
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1188@indico.inp.nsk.su
DESCRIPTION:Speakers: Emiliya Zhuravskaya (Institute of Internal and Preve
ntive Medicine\, Siberian Branch of the Russian Academy of Medical Science
s)\nThe main problem of cardiology\, that society faces\, is the acute hea
rt failure (AHF). Many factors have effect on the development of cardiovas
cular diseases. The primary reasons of myocardial infarction and stroke ar
e hypertension and sclerosis that lead\, with time\, to calcification and
contraction of arteries which prevents blood to enter heart and brain. In
heart vessels an atherosclerotic plaque forms which closing a vascular lum
en\, causes IDH\, and myocardial infarction. Therefore\, studying the deep
mechanisms of plaque formation is the focus of attention. The atheroscler
otic processes in heart vessels may be explained by several theories that
account for the complex processes of atherogenesis. Many papers are devote
d to the cellular composition of plaques. Little\, however\, is known abou
t the element composition of the atherosclerotic nidus of coronary vessels
. Elucidating the content and ratio of chemical elements upon plaque forma
tion in heart vessels may substantially supplement the missing stages of t
his process.\nThe goal of this study is to determine and estimate a comple
x of chemical elements in the substrates of the atherosclerotic nidus of h
uman heart vessels.\nThe method of X-ray fluorescence analysis with synchr
otron radiation (SRXRF) (VEPP-3\, store ring) was used in Center "Siberian
Synchrotron and Terahertz Radiation Center (SSTRC)" to study the content
of chemical elements in vascular walls and in atherosclerotic plaques (sta
ble and unstable) drawn from men after operative therapy. As the amount of
material for studying is limited\, we have developed a special technique
for preparing the samples of vascular and plaque tissues.\nWe measured the
concentrations of K\, Ca\, Cr\, Mn\, Fe\, Co\, Ni\, Cu\, Zn\, Br\, Sr\, Z
r\, and Pb. A comparison was made of the content of elements in the tissue
s of heart vessels with atherosclerotic plaques and of the element composi
tions of stable and unstable plaques. In all the samples studied\, prevail
ing is Ca\, particularly in instable plaques. The concentrations of K\, Ca
\, Cr\, Mn\,Fe\, Ni\, Zn and Br in atherosclerotic plaques are much higher
than in the vascular tissues of heart. At the background of predominant C
a no reliable difference has been revealed in the elements measured in sta
ble and unstable plaques. A high association of Ca with Fe\, Zn\, and Sr h
as been recorded in the atherosclerotic plaques.\nThus\, the SRXRF method
has first allowed one to determine the multielement composition in the sub
strates of the atherosclerotic nidus of human heart vessels.\n\nhttps://in
dico.inp.nsk.su/event/3/contributions/1188/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1188/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The high-pressure diffraction studies of potassium and complex car
bonates: structural trends and stability
DTSTART;VALUE=DATE-TIME:20160706T094000Z
DTEND;VALUE=DATE-TIME:20160706T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1189@indico.inp.nsk.su
DESCRIPTION:Speakers: Sergey Rashchenko (Institute of geology and mineralo
gy SD RAS)\nThe interest to carbonates is determined by their obvious prac
tical importance\, as well as their abundance in the Earth’s interior an
d a key role in magma generation\, plume upwelling and diamond growth [1].
Despite the structural trend of the high-temperature phases of all alkali
ne carbonates is well understood [2]\, almost nothing is known about high-
pressure behavior of these compounds. In this work we use a combination of
the high-pressure diffraction experiments in diamond anvil cell (4th beam
line of the VEPP-3 storage ring of the SSTRC\, Novosibirsk) and ab-initio
calculations to determine the crystal structure of the high-pressure phase
of K2CO3 at 3.1 GPa. \nAmong the structures founded in our calculations\,
the Р21/с-structure shows relevant matching with the experimental patte
rn (Fig. 1). The comparison with the experimental data on Li2CO3 allows to
reconstruct the common structural trend\, which is consistent with the si
mple rule that the structure of the high-pressure polymorph is the same as
the ambient structure of a heavier element compound from the same group o
f the periodic table.\nWe also report on the compressibility and structure
behaviour of thaumasite Ca3Si(OH)6(CO3)(SO4)•12Н2О\, a unique known m
ineral that possesses Si coordinated by six hydroxyl groups and stable at
ambient P/Tconditions [3]. Our data show a strong dependence of its high-p
ressure stability limit on the nature of compressing medium.\nThis work is
supported by the Russian Foundation for Basic Research (grant No 15-55-45
070) and the Ministry of Education and Science of Russian Federation (# 14
.B25.31.0032).\n\nReferences\n[1] Litasov K.D. (2011) Russian Geology and
Geophysics 52\, 475-492.\n[2] Swainson I.P. et al. (1995) J. Phys.-Condens
. Mat. 7\, 4395-4417.\n[3] Gatta G.D. et al.(2012) American Mineralogist\,
97\,1060-1069.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1189/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1189/
END:VEVENT
BEGIN:VEVENT
SUMMARY:X-ray diffraction data for the study of the multilevel nanostructu
res in Ni3Fe deformed single crystals
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1190@indico.inp.nsk.su
DESCRIPTION:Speakers: Svetlana Starenchenko (Tomsk State University of Arc
hitecture and Building)\nX-ray analysis has been applied for the study of
the formation of nanostructures as the result of large plastic deformation
in Ni3Fe single crystals ordered alloy with the L12 structure.\nIt was sh
own that the main structural changes in ordered alloys had the features si
milar to pure metals and the disordered solid solutions. However\, in the
ordered Ni3Fe single crystals the formed nanostructure was more complex. S
tructure consists of nano-crystallites divided by the antiphase boundaries
forming the elements having size a ten times smaller than the dimensions
of the crystallites. The antiphase domain structure was not homogeneous. A
fter the strain of 0.18 together with the domains\, the average size of wh
ich is equal to the original 14 nm\, there were revealed a small fraction
of domains with an average size of 10-11 nm. After the strain of 0.38 or m
ore\, the average size of the antiphase domains was reduced to 5-2 nm. How
ever\, in the material\, a small amount of antiphase domains whose size wa
s close to the original (13 nm) also was revealed along with the small dom
ains. This indicates that the deformation was carried out inhomogeneously
and there remained the sites of material almost unaffected by deformation
processes. Analysis of the research points to the emergence of multilevel
nanostructure with a clearly expressed of the two scale levels. *The repor
ted study was partially funded by RFBR according to the research project
№ 16-03-00182-а*\n\nhttps://indico.inp.nsk.su/event/3/contributions/119
0/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1190/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Superconducting solenoid for superfast THz spectroscopy
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1191@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexey Bragin (Budker Institute of Nuclear Physics)\
nThis project is related to new spectroscopy method in little-developed TH
z \nrange. The method is founded on using of a free electron laser with hi
gh \nspectral power radiation which can be smoothly tuned in desirable ran
ge of \nspectrum. The objects of research of this method are fast processe
s in \nphysics\, chemical and biological reactions. Uniform magnetic field
of 6 T \nvalue in the research area can considerably increase possibiliti
es of this \nmethod. The magnetic field will modulate radiation of free mo
lecules \ninduction on characteristic frequencies of the Zeeman splitting
that gives \nmore possibilities of identification of molecules having even
weak magnetic \nmomentum. Moreover\, the use of magnetic field allows ess
entially increase \nsensitivity of this method due to almost complete sepa
ration of the weak \nmeasuring signals from powerful radiation of the lase
r. A superconducting \nsolenoid was developed for this method. Its design
and peculiarities are \ndescribed in this presentation.\n\nhttps://indico.
inp.nsk.su/event/3/contributions/1191/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1191/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Structural study of novel lipid-dependent dimerization of human GL
TP induced by point mutation
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1192@indico.inp.nsk.su
DESCRIPTION:Speakers: Valeriya Samygina (FSRC "Crystallography and Photoni
cs" RAS\, NRC "Kurchatov Institute"\, Structural Biology Unit CIC bioGUNE
Spain)\nProtein-protein interactions are common in cell and molecular biol
ogy events\, and essential for cellular function. Both homodimers and hete
rodimers are commonly involved in catalysis\, regulation and structural as
sembly. However\, the role of dimerization in controling the action of amp
hitropic peripheral proteins that can exist in water-soluble and lipid-bil
ayer-bound states is not well studied. Human Glycolipid Transfer Protein (
GLTP) carries out the important function of non-vesicular transport of gly
cosphingolipids (GSLs) between membranes [1] but details of the all alpha-
helical GLTP-fold mechanism of action remain unclear. Previously\, reversi
ble lipid-dependent dimerization was discovered for holo-GLTP [2]. Structu
ral studies using synchrotron radiation indicated a homodimer\, reproducib
ly revealed in different crystal forms of GLTP bound with various GSLs. Th
e homodimer is characterized by a 70-80 degree angle between wild-type mon
omers complexed with sulfatide\, but the inter-monomer angle narrows to 63
-66 degrees upon D48V mutation [2]. The inter-monomer contacts were found
to mainly involve helix6-helix6 (H6-H6)\, as well as helix2-helix2 (H2-H2)
at their C-termini. The X-ray structure of another mutant\, K87Q\, comple
xed with 18:1-glucosyl¬ceramide\, reveals a novel homodimer with a differ
ent dimerization contact region that includes the mutation site\, which wa
s not involved in the original dimerization contact region. Fluorescence s
pectroscopy assays involving intrinsic Trp emission changes show that K87Q
-GLTP retains the original binding capacities for such GSLs\, as sulfatide
\, glucosylceramide and galactosylceramide. Thus\, GLTP dimer design could
provide a way to dissect certain steps of the glycolipid transfer process
. The influence of dimer type on steps of lipid transport by GLTP needs fu
rther investigation.\nThis work was supported in part by Russian Foundatio
n for Basic Research project 14-04-01671 and 15-04-07415\, NIH NIGMS GM459
28 and NCI121493\, and CICbioGUNE research funds.\n\nReferences: \n1. Mali
nina L\, Malakhova ML\, Kanak AT\, Lu M\, Abagyan R\, Brown RE\, Patel DJ.
The liganding mode of glycolipid transfer protein is controlled by glycos
phingolipid structure. \nPLoS Biol. (2006). 4:e362. \n2. Samygina VR\, Och
oa-Lzarralde B\, Popov AN\, Cabo-Bilbao A\, Goni-de-Cerio F\, Molotkovsky
JG\, Patel DJ\, Brown RE\, Malinina L. Structural insights into lipid-depe
ndent reversible dimerization of human GLTP. Acta Cryst. (2013). D69:603
–616.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1192/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1192/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Application of SR methods for the study of nanocomposite materials
for Hydrogen Energy.
DTSTART;VALUE=DATE-TIME:20160707T032000Z
DTEND;VALUE=DATE-TIME:20160707T034000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1193@indico.inp.nsk.su
DESCRIPTION:Speakers: V.A. Sadykov (Boreskov Institute of Catalysis of SB
RAS\, Novosibirsk\, Russia)\nApplication of SR methods for the study of na
nocomposite materials for Hydrogen Energy.\nS.N. Pavlova\, V.V. Kriventsov
\, Z.S. Vinokurov\, N.F. Eremeev\, V.A. Sadykov\nBoreskov Institute of Cat
alysis of SB RAS\, Novosibirsk\, Russia\n\nIn the emerging field of Hydrog
en Energy\, tailor-made design of the active components of monolithic cata
lysts for selective oxidation/autothermal reforming of hydrocarbons into
syngas at short contact times\, water gas shift reaction and preferential
oxidation of CO in the hydrogen ex-cess is also based upon the concept of
the bifunctional reaction mechanism\, in which oxygen mobil-ity in comple
x oxide fluorite-like support (doped ceria or ceria-zirconia) plays an imp
ortant role. Complex oxide nanocomposites with perovskite-like and fluorit
e-like structures are known as good ionic or mixed ionic-electronic conduc
tors. This ensures their broad application in the rapidly de-veloping tech
nologies based upon solid state ionic devices including fuel cells (as ele
ctrolytes\, components of cathodes and anodes)\, catalytic membrane react
ors for ultra-pure oxygen and syn-gas generation. Defect structure of the
se complex oxide systems is considered as an important factor in ensuring
their high performance. However\, this restricts ability of traditional st
ructural techniques to elucidate atomic-scale details of their real struct
ure responsible for the transport properties of these systems. This is the
reason why Synchrotron Radiation studies (XANES\, EXAFS\, XRD) of the rea
l/defect structure of complex oxide nanocomposites become tremendously imp
ortant. This presentation summarizes results of these SR studies for such
nanocomposite systems as ceria doped by Me\; ceria-zirconia doped by Ln an
d PrNi0.5Co0.5O3 δ (PNC)\, Ce0.9Y0.1O2 δ (YDC)\, Ce0.65Pr0.25Y0.1O2 δ (
YPDC)\, CeO2 and Pr6O11 powders were synthesized by modified Pechini route
. Complimentary methods such as HRTEM\, Raman\, UV-Vis\, XPS\, magnetic me
asurements etc are applied as well to verify different hypothesis on the
type of the real structure.\nAs follows from analysis data\, Ce cations ch
arge was generally 4+ for PNC – YDC\, while Pr charge was commonly 3+ fo
r PNC and both 3+ and 4+ for its nanocomposite. Since Pr charge var-ies di
ffering from Ce\, it can be Pr which is generally responsible for oxygen v
acancies formation observed. This is in agreement with data on oxygen mobi
lity and surface reactivity studies being carried out previously. Pr and C
e coordination numbers obtained from radial distribution functions are clo
se to the ones in slightly distorted P and F structures. Ce LIII edge spec
tra for nanocomposite is similar to YPDC with difference explained by loca
l Pr:Ce ratio variation and structure distortion. Thus\, generally Pr3+ mi
gration from P to F phase and its charge variation may cause additional va
-cancies formation. This agrees with data obtained in the current work and
previous studies. For nanocrystalline doped ceria-zirconia system\, the m
ost important factor controlling the lattice oxygen mobility appears to be
length of Ce-O (Zr-O) bond and distortion of respective coordination sphe
res\, while free anion vacancies are less important if present at all. Ins
tead\, the fast oxygen diffu-sion pathways could be associated with disord
ered domain boundaries including those between do-mains of different chemi
cal compositions. In this case\, the trend in variation of the real struct
ure pa-rameters with the content and size of a doping cation is much more
complex due to coexisting in the host fluorite-like lattice of small (Zr4+
) and big (Ce4+) cations with different modes of the first coor-dination s
phere distortion. Moreover\, this affects even the mode of the cations spa
tial distribution in the lattice or in the surface layer. Thus\, doping of
ceria-zirconia (1:1) solid solution by Ca or Gd re-sults in depletion of
the surface layer by Zr. For these systems\, more symmetric coordination e
nvi-ronment around Zr cations in doped samples suggests some ordering due
to incorporation of a big doping cation\, which results in decreasing the
lattice oxygen mobility. \nThe work was done using the infrastructure of t
he Shared-Use Center “Siberian Synchrotron and Terahertz Radiation Cente
r (SSTRC)” based on VEPP-3 of BINP SB RAS. This work was sup-ported by B
IOGO FP7 Project\, Russian Academy of Sciences\, and Federal Agency of Sci
entific Or-ganizations (project V.44.1.17).\n\nhttps://indico.inp.nsk.su/e
vent/3/contributions/1193/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1193/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Agilent Technologies solutions in vacuum equipment for high energy
physics
DTSTART;VALUE=DATE-TIME:20160707T034000Z
DTEND;VALUE=DATE-TIME:20160707T040000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1194@indico.inp.nsk.su
DESCRIPTION:Speakers: Mikhail Rukavishnikov (Scientific equipment group)\n
https://indico.inp.nsk.su/event/3/contributions/1194/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1194/
END:VEVENT
BEGIN:VEVENT
SUMMARY:In situ diffraction experiments at VEPP-3 beamlines #2 and #6.
DTSTART;VALUE=DATE-TIME:20160706T090000Z
DTEND;VALUE=DATE-TIME:20160706T092000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1195@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexander Shmakov (Boreskov Institute of Catalysis S
D RAS)\nIn situ diffraction experiments at VEPP-3 beamlines #2 and #6.\n\n
https://indico.inp.nsk.su/event/3/contributions/1195/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1195/
END:VEVENT
BEGIN:VEVENT
SUMMARY:XAFS spectroscopy - a useful tool for determining structure parame
ters and the electronic state of various nanosystems
DTSTART;VALUE=DATE-TIME:20160707T042000Z
DTEND;VALUE=DATE-TIME:20160707T044000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1196@indico.inp.nsk.su
DESCRIPTION:Speakers: Simon Erenburg (Nikolaev Institute of Inorganic Chem
istry SB RAS\, Budker Institute of Nuclear Physics SB RAS)\nSome of the EX
AFS spectra above Ga*K*-and Ge*K*- edges were measured at the VEPP-3 stora
ge ring (beamline 8) of Siberian Synchrotron and Terahertz Radiation Cente
r (SSTRC) of the Budker Institute of Nuclear Physics (BINP SB RAS\, Novosi
birsk\, Russia). Other part of the spectra was measured at the ESRF (Greno
ble\, France). The high energy resolution fluorescence detected HERFD-XANE
S and EXAFS experiments have been performed at 12K at the beamline ID26 or
ID20 equipped by 5-analyzer x-ray emission spectrometer.\n\n**1. Electron
ic and spatial structure of "calibrated" gold clusters in the cavities of
cucurbit[*6\, 7*] uril molecules.**\n\nThe Au*L$_{III}$* X-ray absorption
fine structure (XAFS) spectra have been measured for samples containing ca
librated gold nanoparticles *D* ≤ 1nm nm in cavities of cucurbituril mol
ecules (CB[*6\, 7*]). It has been found that gold clusters are characteriz
ed by smaller 0.03 Å interatomic distances and a considerable reduction i
n the Au-Au coordination numbers (*N* ≤ 8) as compared with bulk gold. N
o visible shifts of Au*L$_{III}$* absorption edges (±0.02 eV) and differe
nces in the Au charge state for Au@СВ[*6\, 7*] samples containing small
Au clusters were detected in comparison with bulk Au metal. A threefold an
d more increase in the Debye-Waller factor at 12K was found for the nanopa
rticles in comparison with bulk metal and correspondingly\, a substantial
increase in the structural disorder. It has been found that special chemic
al (catalytic) and physical (optical) properties of small gold particles a
re likely to be attributed to this structure changes and the size effect w
ith the appearance of a band gap between the occupied and unoccupied elect
ronic states\, rather than changes in the charge state of gold clusters an
d presence of strongly pronounced vertices and edges in structure of nanop
articles.\n\n**2. Microstructure of multilayered heterosystems GaNAlN.**\n
\nA minimal drop (~0.01 Å) in the interatomic Ga–Ga distances *R*(Ga) r
elative to a thick solid film was obtained from the analysis of GaK EXAFS
spectra for multilayered GaN/AlN samples with "thick" (550–850 nm) super
lattices\, agreeing with the numerous dislocations found in them and the c
orresponding stress relaxation in the GaN layers. The interatomic Ga–Ga
distances *R*(Ga) for samples with fewer layers and "thin" (80–150 nm) s
uperlattices fell more substantially (by $\\sim{0.03}$ Å)\, corresponding
to the more substantial deformations and stresses indicated by our earlie
r results for GaN quantum dots in a AlN host. The influence of the growth
conditions and the thickness of the superlattices on mixing in the near b
oundary layers and the optical properties of the GaN/AlN superlattices wer
e revealed. It was established that Ga–Al mixing occurs only in the laye
r nearest to the interface. Anomalously long Ga–Al distances ($\\sim{3.2
5}$ Å) were observed for samples with thick superlattices. This effect ca
n be explained by a nonequilibrium transition from GaN growth to AlN growt
h and the more substantial stresses at the interface of such superlattices
.\n\n**3. Structural characteristics of K-Bi citrate (De-Nol) and its clus
ters in aqueous solutions.**\n\nBi*L$_{III}$* EXAFS spectra of an amorphou
s solid Bi complex with citrate (De-Nol) and its aqueous solutions in a wi
de concentration range are measured. For the solutions good agreement is r
evealed between their structural parameters and the averaged interatomic d
istances and coordination numbers of 12-nuclear Bi clusters. So\, it is fo
und that droplets of the colloidal solution have a structure close to the
solid $Bi_{12}O_{22}$ cluster structure. When the concentrated solution is
diluted the cluster structure is somewhat modified\, it remaining similar
to the structure of the $Bi_{12}O_{22}$ cluster and even at a tenfold dil
ution and the nearest (oxygen) spheres of the Bi environment changing insi
gnificantly.\n\nThis work was supported by the Russian Foundation for Basi
c Research (project no. 16-02-00175a)\n\nhttps://indico.inp.nsk.su/event/3
/contributions/1196/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1196/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Structural determination of nano-dispersed Pd catalysts
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1197@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Kriventsov (Boreskov Institute of Catalysis
)\nE.P. Yakimchuk1\, V.V. Kriventsov1\, B.N. Novgorodov1\, D.P. Ivanov1\,
D.G. Aksenov1\, D.A. Zyuzin1\, N.S. Smirnova2\, V.Z. Radkevich3\, D.O. Ant
onov4\, A.V. Chistyakov4\, A.S. Fedotov4\, S.A. Nikolaev5\, M.V. Tsodikov4
\n\n1) Boreskov Institute of Catalysis SB RAS\, Novosibirsk\, Russia\n2) I
nstitute of Hydrocarbons Processing SB RAS\, Omsk\, Russia.\n3) Institute
of Physical Organic Chemistry NAS of Belarus\, Minsk\, Belarus.\n4) Topchi
ev Institute of Petrochemical Synthesis\, RAS\, Moscow\, Russia\n5) Lomono
sov Moscow State University\, Department of Chemistry\, Moscow\, Russia\n\
nToday\, great attention is attracted to development of highly effective a
pproaches of converting renewable biomass into energy resources as biofuel
s. Some spirit compounds\, such as ethanol\, butanol\, pentanol\, glycerin
e\, being biomass fermentation products\, may be used as fuel components\,
both without any treatment and after catalytic converting\, that provides
production of more effective fuel components. The presented work is devo
ted to a study of the state and local structure of original nano-dispersed
catalytic low-percentage systems PdMe (Me=Zn\, Co\, Mn\, Ag) \, used for
production of alkanes or olefins fractions С4-С12+ which components of b
iofuels obtained from biomass fermentation products. Initial samples of ca
talysts were prepared by impregnation and zol-gel methods from original mo
no- and hetero-metallic precursors located on the oxide supports. All XANE
S and EXAFS spectra of the studied samples were recorded at Siberian Synhr
oton and Terahertz Radiation Center (SSTRC\, Novosibirsk).Genesis of the l
ocal structure of the studied catalytic nanosystems was characterized in d
etail. The interatomic distances and corresponded coordination numbers wer
e revealed. All possible structural models were discussed. Relations betwe
en their catalytic properties\, local structure distortions and state of m
etal components were demonstrated. It was found out that active components
of all studied systems were highly dispersed onto the oxide support surfa
ce and strong interaction with the support took place\, resulting in forma
tion of mixed surface MeOx - support oxides. Additionally\, the samples of
catalysts were characterized by the TEM\, EDX and XPS methods. The data o
btained by all the methods are in a good agreement. \n\nThe work was done
using the infrastructure of the Shared-Use Center “Siberian Synchrotron
and Terahertz Radiation Center (SSTRC)” based on VEPP-3 of BINP SB RAS.
This work was supported by RFBR (140301066\, 163350248\, 163350249\, 16335
0250\, 160301139)\, SB RAS comprehensive program II.2P (Project 0305-2015-
0018).\n\nhttps://indico.inp.nsk.su/event/3/contributions/1197/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1197/
END:VEVENT
BEGIN:VEVENT
SUMMARY:XRF with SR micro beams in the study of geological samples.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1202@indico.inp.nsk.su
DESCRIPTION:Speakers: Fedor Darin (Budker Institute of Nuclear Physics SB
RAS)\nMicro beams of synchrotron radiation at the experimental station of
elemental analysis in the storage ring VEPP-3 obtained using polycapillary
focusing optics. The minimum sizes of the exciting radiation spot with an
energy of 8 – 25 keV on the sample surface is 10x15 square microns. Thi
s allows us to make detailed studies of the elemental composition of vario
us geological samples: mono crystals\, inclusions\, annual layers in the b
ottom sediments and other. A set of analyzed elements depends on the excit
ation energy. For the energy of 25 keV it is possible to analyze about 30
rock-forming and trace elements: K\, Ca\, Ti\, V\, Cr\, Mn\, Fe\, Co\, Ni\
, Cu\, Zn\, Ga\, As\, Se\, Br\, Rb\, Sr\, Y\, Zr\, Nb\, Mo\, Ru\, Rh\, Pd\
, Ag using K-series\, and Ta\, W\, Au\, Pb\, Th\, U using L-series. The de
tection limits for light elements (K\, Ca) are estimated to be 500-300 ppm
\, for Pd\, Ag in optimal conditions\, the detection limit is about 50-100
ppb.\nLocal microanalysis or two-dimensional scanning is possible using o
ne focusing lens. One can make a three-dimensional study of micro inclusio
ns by using confocal scheme of experimental station (two lenses scheme). A
lso instrumental functions of pollycapilary lenses and confocal x-ray micr
oscope were calculated to vary spot size on the sample (in range from 10 t
o 100 microns) and confocal volume size.\n\nhttps://indico.inp.nsk.su/even
t/3/contributions/1202/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1202/
END:VEVENT
BEGIN:VEVENT
SUMMARY:3D X-ray lithography
DTSTART;VALUE=DATE-TIME:20160707T074000Z
DTEND;VALUE=DATE-TIME:20160707T080000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1203@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Nazmov (Budker Institute of Nuclear Physics
)\nAn increased depth of the transformed material\, due to the low absorpt
ion of materials to X-rays\, was one of the main advantages of the X-ray l
ithography for the photolithography and for the electron beam lithography.
But\, this property was an obstacle to its further development concerning
3D patterning. Practically\, all the created by X-ray lithography so-call
ed 3D structures [A.del Campo\, C.Greiner. SU-8: a photoresist for high-as
pect-ratio and 3D submicron lithography\, J.Micromech.Microeng.\, v.17(200
7) R81-R95] are really 2D+ structures. In this work\, a concept of manufac
turing of real 3D structures is proposed. At the same time\, the high spat
ial resolution of the method is kept. Using a high-contrast X-ray resist\,
3D microstructures of various forms and sizes are created. The smallest m
icrostructure achieve a size of about 0.3 microns.\n\nhttps://indico.inp.n
sk.su/event/3/contributions/1203/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1203/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Application of ELN-200 in deep X-ray lithography
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1204@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Nazmov (Budker Institute of Nuclear Physics
)\nThe negative tone electron beam resist ELN-200 has been developed in 80
th years of the 20th century for thin film patterning. The sensitivity of
the resist to X-rays has also been studied [E.S.Gluskin\, A.A.Krasnoperova
\, G.N.Kulipanov\, V.P.Nazmov\, V.F.Pindurin\, A.N.Skrinsky\, V.V.Chesnoko
v\, Experiments on X-ray lithography using synchrotron radiation from the
VEPP-2M storage ring\, Nuclear Instr.Meth. in Phys.Res.\,v.208(1983) 393-3
98]. In the actual work\, the X-ray lithographic properties of the resist
have been studied after 33 years of storage. It was established that the c
ontrast and the sensitivity of the resist to X-rays are not changed. The c
onditions of both formation of thick resist layers and manufacturing of hi
gh aspect ratio microstructures using hard X-rays are developed. The micro
structures of up to 70 um in height have been manufactured. The roughness
of vertical sidewalls of the microstructures doesn't exceed 50 nanometers.
\n\nhttps://indico.inp.nsk.su/event/3/contributions/1204/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1204/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Synchrotron-based experimental study and theoretical simulation of
hydrogen desorption for solid-state hydrogen storage material – Mn(BH4)
2
DTSTART;VALUE=DATE-TIME:20160707T052000Z
DTEND;VALUE=DATE-TIME:20160707T054000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1205@indico.inp.nsk.su
DESCRIPTION:Speakers: Ilia Pankin (Southern Federal University\, IRC "Smar
t materials")\nThe material under study is manganese borohydride Mn(BH4)2.
The unique thermodynamics and kinetic properties in combination with high
volumetric and gravimetric hydrogen densities make this compound a very p
romising candidate to solid state hydrogen storage. Local atomic structure
of Mn(BH4)2 upon heating was completely studied by in-situ temperature-de
pendent measurements of X-ray powder diffraction patterns and Mn K-edge XA
NES (X-ray Absorption Near Edge Structure) at SNBL-01b beamline of ERSF. D
iffraction patterns indicate amorphisation during heating the sample above
110 oC. XANES Mn K-edge spectra also undergo significant changes at the t
emperature from 120 oC to 160o C. TGA analysis reveals drastic weight redu
ction (up to 10 mas %) of Mn(BH4)2 at the same temperature range. It was c
oncluded that temperature induced phase transition which is accompanied by
sample amorphisation process as well as abundant hydrogen release were ob
served.\n We have performed ab-inito structure prediction using pseudo
potential approaches within DFT approximation (VASP 5.3 code). Structural
models with different contents of hydrogen atoms per unit cell were consid
ered. Cell shape\, cell volume and atomic position were relaxed. The simul
ation indicates collapse of porous structure and decrease in the interatom
ic distances Mn-B and Mn-Mn provided by significant reduction of cell volu
me. To find possible stable structures of dense Mn-B phase we have applied
evolutionary algorithms as implemented in the USPEX code. Several low-ene
rgy candidates were selected for further analysis. Owing to amorphisation
process we expect that the sample after heating has unhomogeneous structur
e with a nanodomain features corresponding to various crystalline atomic o
rdering. XANES Mn K-edge spectra were calculated for the lowest energy str
uctural models\, predicted by means of simulations. Numerical analysis of
the discrepancy between experimental and theoretical XANES spectra was per
formed in order to verify the MnxBy local structure observed in the experi
ment.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1205/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1205/
END:VEVENT
BEGIN:VEVENT
SUMMARY:On the structural features of mechanically alloyed Cu-Ag and Au-Co
by severe cold and cryogenic plastic deformation
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1206@indico.inp.nsk.su
DESCRIPTION:Speakers: Timofey Tolmachev (M.N. Mikheev Institute of Metal P
hysics of the Ural Branch of the Russian Academy of Sciences (IMP UB RAS))
\nSystems of positive enthalpy of mixing Cu-Ag and Au-Co in a condition of
powder mixtures were processed by high pressure torsion at 293 K (cold de
formation) and 80 K (cryodeformation). Original concentration of the eleme
nts for Cu-Ag was 80:20 at.% respectively and for Au-Co were 80:20 and 50:
50 at.% respectively. The samples were studied by an X-ray diffraction ana
lysis by synchrotron radiation at a wavelength of 0.03685 nm. It was found
that the substitution solid solutions on the base of Cu for Cu-Ag and on
the base of Au for Au-Co are formed. Besides that another phases as a resu
lt of decay or incomplete dissolution was also recorded. It was revealed t
hat for Cu-Ag the cryogenic temperature effect during strain at constant p
ressure doesn't contribute to increase the content of Ag in solid solution
. But for Au-Co this effect is reversal. More than that each of the follow
ing factors promote to increase the Co content in solid solution: increasi
ng of pressure\, reducing the temperature to cryogenic one\, increasing of
the applied strain and\, of course\, increasing of Co content in original
mixing.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1206/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1206/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Scanning X-ray fluorescence analysis of biological samples
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1207@indico.inp.nsk.su
DESCRIPTION:Speakers: Arina Lobova (Budker Institute of Nuclear Physics SB
RAS)\nThe objective of the work is examination of plant standards for est
imation of the minimum limits of detection of trace elements in biological
tissues and samples\, as well as visualization of the distribution profil
e of some chemical elements in a clinical sample. The work considers the a
dvantages of using synchrotron radiation (SR). The examination of prepared
samples was conducted by a standard technique\, a reference to which is g
iven in the work. The analysis enables determination calculation of the mi
nimum limits of detection of elements. A conclusion was made that analysis
enables detection of heavy elements with a content of about 1 ppm in a bi
ological tissue. The linear profile of platinum distribution in a clinical
sample and a two-dimensional map of the distribution of elements has been
obtained\; a correlation between the relative content of sulfur and plati
num in the material of a bulb of the brain has been revealed. The correspo
nding figures and graphs are presented.\n\nhttps://indico.inp.nsk.su/event
/3/contributions/1207/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1207/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Technogenic Fallout of Uranium and Thorium in Novosibirsk vicinity
(Russia\, West Siberia)
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1209@indico.inp.nsk.su
DESCRIPTION:Speakers: Svetlana Artamonova (IGM SB RAS)\nThe article is dev
oted to the problem of technogenic pollution of environment: the results o
f the mineralogical and geochemical investigation of suspension content of
melted snow and soils samples of Novosibirsk vicinity are considered. Co
ntent of U\, Th and heavy metals were determined by means of X-ray fluores
cence elemental analysis with synchrotron radiation (SR-XRF) method. For t
he 235U and 238U isotope analysis is used mass-spectrometry with inductive
ly coupled plasma (ICP-MS) method. Mineral formations of aerosol particles
were studied with scanning electron microscopy.\nPreviously shown that th
e V\, Mn\, I\, Ga are the main geochemical indicators of emission of Novos
ibirsk heat and electric power plants (HEPP -2\, -3\, -5) [Artamonova\, 20
11]. But the Th and U is revealed to be the geochemical indicators of HEPP
emission too. Brown coal of Kuzbas and Kansk-Achinsk coal basin are used
as firewood of Novosibirsk TETs. Coal of these deposit basin is known to b
e enriched by heavy metals and natural radionuclides during their geologic
al origin time. So\, Th and U are significant in technogenic fallout of vi
cinity. This fact is confirmed by studies results: U and Th content in aer
osols and soil of HEPP vicinity are a few times greater than in pure backg
round cite. \nThe second source of U fallout are the emissions of the No
¬vosibirsk Chemical Concentrates Plant (NCCP) of Rosatom State Nuclear En
ergy Corporation. Namely the isotope 238U/235U ratio is used as the main i
ndicator of NCCP aerosol pollution. The maximal distance of NCCP emission
plume is revealed to arrive by 70 km\, where 238U/235U ratio of aerosol is
132.1 3.3. The 238U/235U increases up to about natural ratio 138.4 at
110 km far from NCCP emission northern east plume only. In the NCCP vicin
ity the particles of uranium oxides in technogenic aerosol were establishe
d by means of scanning electron microscopy.\nThus the U\, Th technogenic p
ollution of Novosibirsk vicinity is revealed. The ecological situation may
be developed by heat and electric power plant modernization\, by gaseous
will stand the dominating firewood of Novosibirsk HEPP. The elemental SR-X
RF analysis of snow precipitation and soil can be used to carry out a time
ly and reliable environmental assessment of an urban territory. \nThe work
was supported by the Russian Foundation for Basic Research under project
No. 14-05-00289.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1209/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1209/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Synchrotron radiation research and application at VEPP-4
DTSTART;VALUE=DATE-TIME:20160704T103000Z
DTEND;VALUE=DATE-TIME:20160704T105000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1210@indico.inp.nsk.su
DESCRIPTION:Speakers: Pavel Piminov (BINP SB RAS)\nPresently at VEPP-4 sto
rage ring facility varied experimental programs are carried out including
HEP\, nuclear physics\, synchrotron radiation and e+e− beams (polarized
and unpolarized).\n\nhttps://indico.inp.nsk.su/event/3/contributions/1210/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1210/
END:VEVENT
BEGIN:VEVENT
SUMMARY:ELEMENT COMPOSITION OF PENTAPHYLLOIDES FRUTICOSA OF THE RUSSIAN FA
R EAST AND EAST SIBERIA
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1211@indico.inp.nsk.su
DESCRIPTION:Speakers: Elena Khramova (Central Siberian Botanic Garden\, SB
RAS)\nThe element composition of both bush cinquefoil (Pentaphylloides fr
uticosa)\, growing in the Russian Far East (Primorsky krai\, Amurskaya obl
ast) and East Siberia (Buryatiya\, Irkutskaya oblast)\, and the samples of
soils has been studied by the method of X-ray analysis using synchrotron
radiation (SR XRF) at the station of element analysis of the Shared-Use Ce
nter SSTRC Budker Institute of Nuclear Physics\, SB RAS (VEPP-3 storage ri
ng). \nThe goal of the work was to investigate the interpopulation variabi
lity of the element composition of P.fruticosa and to reveal populations w
ith a high content of macro- and microelements.\nNo less than 21 elements
were determined (K\, Ca\, Ti\, V\, Cr\, Mn\, Fe\, Co\, Ni\, Cu\, Zn\, As\,
Se\, Br\, Rb\, Sr\, Y\, Zr\, Nb\, Mo\, Pb). The maximal content of macroe
lements (K\, Ca) was \, as a rule\, recorded in leaves and that of microel
ements was found in stems independent of natural habitat. The highest cont
ent of Fe\, Ti\, Zn\, Ni\, Pb\, Nb\, Co was determined in the stems of the
plants of the Primorsky krai\, that of Cr\, Zr\, Sr and Br was found in t
he plants of Buryatiya\, and the highest content of Y and V was recorded i
n the plants growing in the Irkutskaya oblast. Mn was accumulated mainly i
n the leaves of the plants of the Amurskaya oblast\, Rb was found in the p
lants of the Irkutskaya oblast and Cu\, Мо and Se – in the plants of B
uryatiya. The high content of Fe\, Co\, Ni\, Cu\, Rb\, Zr\, Pb in plants c
orrelates with their content in the soils of sampling sites.\nMost stable
is the content of Ca\, K and Cu (СV= 8 – 20%) in the plants of various
habitats. The variability of the rest elements of P. fruticosa is estimate
d as high and very high. In this case\, the populations exhibit a small sp
read of element content (about an order of magnitude) which may be conditi
onally assigned to narrow samplings. The concentrations of Ni and Mo in th
e leaves of P. fruticosa vary by two orders of magnitude. The calculated m
ean geometric values of the element content in the leaves and stems of P.
fruticosa of the populations studied are typical of the species\, may be a
pplied in a comparative analysis with other plants\, may be used to standa
rdize the vegetable staff and may be included in the data base.\n\nThe rep
orted study was funded by RFBR according to the research project No.16-3
4-00699-мол_а.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1211
/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1211/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Synchrotron Small-Angle X-Ray Scattering as Universal Instrument o
f Structural Analysis of Bio and Nanosystems
DTSTART;VALUE=DATE-TIME:20160705T074000Z
DTEND;VALUE=DATE-TIME:20160705T080000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1212@indico.inp.nsk.su
DESCRIPTION:Speakers: Eleonora Shtykova (Shubnikov Institute of Crystallog
raphy of Federal Scientific Research Centre “Crystallography and Photoni
cs” of Russian Academy of Sciences)\nSmall-angle X-ray scattering is a u
niversal diffraction method for studying the supra-atomic structure of mat
ter. The potential of this technique has greatly increased in recent years
due to the development of bright synchrotron radiation sources. The exten
sive use of these sources\, in combination with new techniques for interpr
etation of scattering data and structural modeling\, made small-angle scat
tering one of the most effective analytical methods to study nanoscale str
uctures. In the present work\, after a brief outline of the basic principl
es of small-angle scattering by isotropic dispersed nanosystems\, two area
s of nanodiagnostics\, in which the progress in the small-angle experiment
and the latest techniques for interpreting scattering data has become pro
nounced in recent years\, will be demonstrated. These areas - the analysis
of the structure of biological macromolecules in a solution and structura
l studies of metal nanoparticles synthesized in polymer and aqueous media
- are illustrated by examples of practical biological and nanotechnologyca
l applications.\n\nThis work was supported in part by Russian Foundation f
or Basic Researches (projects 15-54-74002 EMBL\, 16-03-00375\, 16-03-00379
and 16-29-11765).\n\nhttps://indico.inp.nsk.su/event/3/contributions/1212
/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1212/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Electron Beam Stability in the Energy Recovery Linac for the Litho
graphic Free Electron Laser
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1213@indico.inp.nsk.su
DESCRIPTION:Speakers: Yaroslav Getmanov (Budker INP)\nAccording to microel
ectronic production leaders the lithography based on the free electron las
er (FEL) could become the main technology for the elements mass production
with scale to 5 nm in the nearest future. One of the main problem is the
absence of the working FEL with required parameters. The feasibility study
of those FEL based on superconducting energy-recovery linac (ERL) was mad
e in Budker INP. The ERL average current is limited by longitudinal and tr
ansverse instabilities\, caused by interaction between electron beam and i
ts induced fields in the superconducting cavities. The estimations of the
threshold currents and ERL parameters were made.\n\nhttps://indico.inp.nsk
.su/event/3/contributions/1213/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1213/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Investigation of influence NH4VO3+HOCH2CH2OH oxidation of ASD-4 po
wder
DTSTART;VALUE=DATE-TIME:20160706T082000Z
DTEND;VALUE=DATE-TIME:20160706T084000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1214@indico.inp.nsk.su
DESCRIPTION:Speakers: Danil Eselevich (ISSC UB RAS)\nTo improve the charac
teristics of rocket propellants\, high-energy metal powders are used. Alum
inum powders are most widely employed metallic combustibles. However\, the
presence of an oxide film on the surface of particles is a grave disadvan
tage\, which does not allow using their energy potential in full.\nThis wo
rk presents results of a study of the oxidation process of Al powder modif
ied ammonia metavanadate and ethylene glycol. The specific surface of Al p
owder was 0.4 m2/g\; active metal - 98.7%\; vanadium content - 0.5-0.8%.\n
Carried out a comprehensive study of the modified aluminum powder oxidatio
n by methods TG\, DSC\, X-ray diffraction using a synchrotron radiation so
urce. The study was conducted in air at a heating rate of 10 deg./min. to
1250 0C. It has been found that the impregnation of micro-powder ASD-4 acc
elerates it’s oxidation under heat and shifts the process to the low tem
perature zone\, compared with the initial powder Al. Showed the features o
f oxidation by the formation of intermediate phases of vanadium oxide at l
ow temperatures. The two modifiers have been compared: NH4VO3 + HOCH2CH2OH
and studied previously V2O5 ∙ nH2O. The latter has the advantage of the
completeness of the final conversion\, but for the more active powders is
preferable to use ethylene glycol.\n\nhttps://indico.inp.nsk.su/event/3/c
ontributions/1214/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1214/
END:VEVENT
BEGIN:VEVENT
SUMMARY:FEL-pumped Silicon lasers based on hydrogen-like impurity centers
DTSTART;VALUE=DATE-TIME:20160707T020000Z
DTEND;VALUE=DATE-TIME:20160707T023000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1215@indico.inp.nsk.su
DESCRIPTION:Speakers: Heinz-Wilhelm Hübers (German Aerospace Center (DLR)
and Humboldt University Berlin)\nHydrogen-like impurity centers in monocr
ystalline Silicon can be utilized for terahertz(THz) lasers. Several types
of such lasers have been demonstrated. The\nlasers operate at low lattice
temperatures under optical pumping\nwith a free electron laser (FEL). Th
ey emit light frequencies between 1.2 and 6.9 THz.\nDipole-allowed optical
transitions between particular excited\nstates of substitutional impuriti
es are utilized. Population inversion induced by optical pumping with the
FEL is achieved due to specific electron–phonon interactions inside the\
nimpurity atom. This results in long-living and short-living\nexcited stat
es of the impurity centers. Another type of THz laser\nutilizes stimulated
resonant Raman-type scattering of photons\nby a Raman-active intracenter
electronic transition. By varying\nthe pump-laser frequency\, the frequenc
y of the Raman intracenter\nsilicon laser can be continuously changed betw
een at\nleast 4.5 and 6.4 THz. In addition\, fundamental\naspects of the l
aser process provide new information about the\npeculiarities of electroni
c capture by shallow impurity centers\nin silicon\, lifetimes of nonequili
brium carriers in excited\nimpurity states\, and electron–phonon interac
tion.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1215/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1215/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Metrological station "Cosmos". Current status.
DTSTART;VALUE=DATE-TIME:20160707T090000Z
DTEND;VALUE=DATE-TIME:20160707T092000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1216@indico.inp.nsk.su
DESCRIPTION:Speakers: Anton Nikolenko (BINP)\nMetrological synchrotron ra
diation station “Cosmos” is functioning in the Siberian Centre of Sync
hrotron Radiation. The purpose of the station is the development and imple
mentation of metrology methods in the soft X-ray (80–2000 eV) and vacuu
m ultraviolet (10–100 eV) ranges. Also at the station is carry out works
on the measurement of the spectral transmission of soft X-ray filters\, t
he definition of the spectral characteristics of multilayer mirrors and cr
ystals at the mentioned spectral range. The report presents the main para
meters of the station\, a description of its layout\, of its monochromatic
system and its reference detectors. The specification of basic metrologic
al procedures used at the station for calibration of the various detectors
is presented too.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1216
/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1216/
END:VEVENT
BEGIN:VEVENT
SUMMARY:NSLS-II Booster
DTSTART;VALUE=DATE-TIME:20160704T082000Z
DTEND;VALUE=DATE-TIME:20160704T084000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1217@indico.inp.nsk.su
DESCRIPTION:Speakers: Sergey Gurov (BINP)\nThe National Synchrotron Light
Source II is a third generation light source\, which was constructed at Br
ookhaven National Laboratory. This project includes a highly-optimized 3 G
eV electron storage ring\, linac preinjector\, and full-energy synchrotron
injector. Budker Institute of Nuclear Physics built and delivered the boo
ster for NSLS-II. The commissioning of the booster\nwas successfully compl
eted.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1217/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1217/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Manufacturing of high resolution X-ray masks for LIGA technology i
n SSTRC
DTSTART;VALUE=DATE-TIME:20160707T080000Z
DTEND;VALUE=DATE-TIME:20160707T082000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1218@indico.inp.nsk.su
DESCRIPTION:Speakers: Aleksey Lemzyakov (BINP SB RAS)\nOne of main problem
s in deep X-ray lithography (DXRL) is X-ray masks fabrication. \nThe prima
ry way to get high-resolution X-ray masks is to use soft X-ray lithography
with intermediate X-ray mask. The soft X-ray lithography is performed at
“LIGA” station of VEPP-3 synchrotron radiation (SR) source in Siberian
Synchrotron and Terahertz Radiation Centre (SSTRC). \nIn addition\, the t
echnique of fabrication of intermediate X-ray mask based on titanium membr
ane is developed.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1218/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1218/
END:VEVENT
BEGIN:VEVENT
SUMMARY:On the dynamical theory of the X-ray DuMond-type spectrometer
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1219@indico.inp.nsk.su
DESCRIPTION:Speakers: Tesik Chen (Moscow Technological University\, Depart
ment of Physics)\nDynamical Laue-diffraction of X-rays on the bent crystal
is presented. The phase of diffracted wave takes into account cubic terms
. The DuMond-type spectrometer is considered for the X-ray source\, situat
ed on the Rowland-circle. Dynamical theory of the DuMond-type spectrometer
is developed for ideal and mosaic curved crystals. Dependence of the spec
tral resolution on the source dimensions is analyzed.\n\nhttps://indico.in
p.nsk.su/event/3/contributions/1219/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1219/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Spatial-temporal diffraction of thermal neutrons by ideal deformed
crystals
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1220@indico.inp.nsk.su
DESCRIPTION:Speakers: Tesik Chen (Moscow Technological University\, Depart
ment of Physics)\nDynamical theory of thermal neutrons diffraction by idea
l deformed crystals is presented.\nDeformations of different kinds (mechan
ical bending\, temperature gradient\, ultrasound oscillations) are conside
red. The diffraction phenomenon of spatial-temporal focusing of neutrons i
s analyzed.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1220/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1220/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Status of the experimental station on the fourth beamline of VEPP-
3 storage ring
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1221@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexey Ancharov (Institute of Solid State Chemistry
and Mechanochemistry SB RAS)\nPresent status of the experimental station o
n the fourth beamline of VEPP-3 storage ring (Siberian Center for Synchrot
ron and Terahertz Radiation\, INP SB RAS\, Novosibirsk\, Russian Federatio
n) and some recently obtained results are presented.\n\nhttps://indico.inp
.nsk.su/event/3/contributions/1221/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1221/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Analysis of K-lines X-ray fluorescence of Rare-Earth and High-Z el
ements on storage ring of the VEPP-4M
DTSTART;VALUE=DATE-TIME:20160705T082000Z
DTEND;VALUE=DATE-TIME:20160705T084000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1222@indico.inp.nsk.su
DESCRIPTION:Speakers: Aleksandr Legkodymov (Alekseevich)\nX-ray fluorescen
ce analysis with high-energy photons (40–100 keV) is described. Measurem
ent of K-lines from high-Z elements has attractive advantages\, which are
not available by L-line analysis. The experimental data on the minimum det
ection limits (MDLs) of rare-earth elements from La to Lu in standards of
igneous rocks are described. The first results were obtained at the minimu
m detection limits of heavy platinoids (Os\, Ir\, Pt\, Au) based on the li
nes of the K series of the characteristic radiation excited by photons wit
h energy 100 keV.\nThe main parameters of the beamline\, layout\, monochro
matization system and detection system of the X-ray fluorescent are descri
bed.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1222/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1222/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Phase content of interfaces Ti / Al3Ti in metal-intermetallic lami
nate studied by x-ray and synchrotron diffraction
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1223@indico.inp.nsk.su
DESCRIPTION:Speakers: Vitaliy Pilyugin (M.N. Mikheev Institute of Metal Ph
ysics of the Ural Branch of the Russian Academy of Sciences (IMP UB RAS))\
nIn the Ti–Al3Ti composites produced by reaction sintering of titanium a
nd aluminum foils under pressure\, any oxides that accumulate at the front
of an intermetallic reaction form a thin extended region in the forming i
ntermetallic Al3Ti layer. This region can be a weak point in the microstru
cture of the laminate composite material. Sintering route was optimized to
minimize the quantity of oxides particles (basically Al2O3 particles) in
order to improve some mechanical properties. The phase content of micron c
omposite layers was studied by x-ray and synchrotron diffraction. X-ray di
ffraction (Bragg-Brentano geometry with a flat-plate sample) showed that c
omposite layers basically contain only Ti and Al3Ti phases. Synchrotron di
ffraction (a transmission mode to pass through the 390 micron thickness sa
mple layer) allowed to reveal the presence of residuals of aluminum phase.
Also\, the frame capture mode\, using of synchrotron beam with the size 0
.4×0.1 mm\, allowed to prove the absence of Al2O3 phase particles along t
he Ti / Al3Ti interfaces. \n\nDiffraction experiments were performed at th
e 4-th SI-channel of VEPP-3 beam station. The research was carried out wit
hin the state assignment of FASO of Russia (theme "Deformation" No. 012014
63327).\n\nhttps://indico.inp.nsk.su/event/3/contributions/1223/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1223/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Application of the Ө-const method on VEPP-3 in small-angle diffra
ctometry of biological objects
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1224@indico.inp.nsk.su
DESCRIPTION:Speakers: Alvina Vazina (Institute of theoretical and experime
ntal biophysics\, RAS)\nThe researches of test samples (collagen fibres an
d alive muscles in various functional conditions) were carried out by meth
od of power diffraction (Ө-const) with use of synchrotron radiations of V
EPP-3 storage ring (INP SD RAS\, Novosibirsk) with a continuous spectral i
nterval from 5 to 20 keV (Е=2GeV\, I = 2 - 10 mA). Use the semi-conductor
Si/Li detector with high energy resolution has allowed to register the in
formative diffraction pictures during exposition times\, essentially small
er\, than at traditional methods of registration. X-ray patterns of collag
en show about 16 diffraction peaks in the range of 1100 - 310 nm\, distanc
e between peaks to 800 eV\, and X-ray patterns of muscle display up to 7 p
eaks in the range of 1430 - 530 nm. \nResults of the work have shown that
high efficiency of registration and the energy resolution of the detector
give possibilities for development of a method of high-speed diffractometr
y of biological objects. \nThus\, the big intensity of SR\, the wide spect
ral interval surpassing the intensity of a monochromatic beam on several d
egrees in integrated intensity\, and modern high-sensitive detectors open
possibilities for the decision of a new class of the problems connected wi
th dynamics of structural transformations.\n\nhttps://indico.inp.nsk.su/ev
ent/3/contributions/1224/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1224/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Semiconductor spectroscopy with infrared and terahertz free-electr
on lasers
DTSTART;VALUE=DATE-TIME:20160706T020000Z
DTEND;VALUE=DATE-TIME:20160706T024000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1225@indico.inp.nsk.su
DESCRIPTION:Speakers: Harald Schneider (Helmholtz-Zentrum Dresden-Rossendo
rf)\nThis talk reviews some recent spectroscopic studies on semiconductor
structures carried out using the mid-infrared and terahertz (THz) free-ele
ctron laser (FEL) facility FELBE in Dresden\, Germany. Its intense\, nearl
y transform-limited picosecond pulses\, which can also be combined with sy
nchronous pico- or femtosecond pulses from near-infared tabletop lasers\,
provide unique research opportunities to advance our knowledge on the inte
raction of intense mid-infrared and THz fields with materials and devices.
\n\nhttps://indico.inp.nsk.su/event/3/contributions/1225/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1225/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Status of dynamic diagnostics of plasma material interaction based
on synchrotron radiation scattering at the VEPP-4 beamline 8
DTSTART;VALUE=DATE-TIME:20160706T070000Z
DTEND;VALUE=DATE-TIME:20160706T074000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1226@indico.inp.nsk.su
DESCRIPTION:Speakers: Aleksey Arakcheev (Budker INP)\nThe residual mechani
cal deformation and stress were measured in the preliminary experiments ca
rried out at synchrotron radiation (SR) scattering stations at VEPP-3 in t
he Siberian Center of Synchrotron and Terahertz Radiation (“Precision di
ffractometry and anomalous scattering”\, “Diffractometry in hard X-ray
s”). The deformation and stress were calculated on the basis of the depe
ndence of the scattering angle on the inclination of the irradiated tungst
en sample. Significant changes in the SR diffraction are found as the resu
lt of material recrystallization or irradiation of the material by plasma.
It implies that the SR scattering diagnostics may be an informative instr
ument for in-situ observations of the state of the plasma facing component
s.\n\n\n\nThe next stage of the SR scattering diagnostics development at t
he VEPP-4 beamline 8 is the dynamic measurements during pulsed heat loads.
Currently a 1J Nd:YAG laser is used for the 0.2ms heat load simulation an
d a 100J laser is under development. The parameters of the heating are suf
ficient for simulation of the expected pulsed heat load in ITER. The destr
uctive effect of pulsed heat loads is caused by mechanical stresses that o
ccurs in highly non-uniformly heated materials. The main aim of the curren
t development of diagnostics based on SR scattering is the dynamic measure
ments of the mechanical deformation and stress dependences on the depth be
low the surface. It looks like the rotation of crystallographic planes due
to mechanical deformations is the dominant effect in the SR scattering. S
o the deformation and stress distributions may be calculated using measure
ments of the diffraction peak parameters of SR passed through the sample.
The set of requirements (the pass through material\, dynamical measurement
s of pulsed processes) determines restrictions on SR brightness and energy
. The SR from VEPP-4 with energy 69keV will be used for experiments with t
ungsten. Also a single crystal samples are necessary for increasing of the
diffraction peak brightness. Currently\, the one-dimensional gas X-ray de
tector DIMEX is used for measurements. The development of the silicon dete
ctor for increasing of the sensitivity is in progress.\n\n\nThe first dyna
mical measurements of the diffraction peak of SR passed through the 250µm
thick single crystal tungsten were carried using the one-dimensional dete
ctor. The inclination of the sample to the initial SR beam was about 45°
in order to result in the diffraction peak shift. The change of the SR sca
ttering angle about 0.1° during the laser irradiation and the subsequent
fast return during the comparable time were found out. The behavior could
be explained by the bending of the initially plane sample. The bending mom
ent is proportional to the difference of the temperature at the heated and
opposite sides. The moment disappears while the temperature distribution
flattens across the thin sample. Conversely the temperature propagation al
ong the sample surface takes more time. Thus the expected effect of the cr
ystal planes rotation could be estimated as the diffraction peak shift aft
er the temperature flattening across the sample. The measured shift was ab
out 0.03°. The measurements of deformation and stress distributions acros
s the sample requires the analysis of the diffraction peak shape during th
e laser irradiation.\n\nhttps://indico.inp.nsk.su/event/3/contributions/12
26/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1226/
END:VEVENT
BEGIN:VEVENT
SUMMARY:DIAMOND REFRACTIVE LENSES FOR DIFFRACTION-LIMITED X-RAY SOURCES
DTSTART;VALUE=DATE-TIME:20160707T082000Z
DTEND;VALUE=DATE-TIME:20160707T084000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1227@indico.inp.nsk.su
DESCRIPTION:Speakers: Maxim Polikarpov (IKBFU)\nAn intensive development o
f X-ray refractive optics’ instrumentation and tools has given birth to
X-ray refractive lenses [1] which are now standard elements at third-gener
ation synchrotron radiation sources. In view of the global switch to the f
ourth generation of synchrotron sources and X-ray Free Electron Lasers\, t
here is a growing need for x-ray optical elements fabricated from material
s that can withstand extreme heat and radiation loads while still providin
g effective focusing and imaging. Diamond can satisfy all the requirements
provided that a suitable lens manufacturing technology is available. \n\n
In our research [2]\, for the first time single crystal diamond planar ref
ractive lenses were fabricated by laser micromachining in up to 1.2 mm th
ick diamond plates which were grown by CVD and HPHT. Various linear lenses
with apertures up to 1mm and radii of the parabola apex up to 500µm were
manufactured and investigated with SEM\, AFM\, Raman spectroscopy and\, o
f course\, X-ray tests at the ESRF ID06 beamline. X-ray focusing showed th
e high quality of the lens’s side walls and profile allowing to focus th
e X-radiation in accordance with the lens demagnification factor. \nPlanar
lenses were followed by 2D parabolic X-ray refractive half lenses\, which
were also manufactured by laser micro-machining of single-crystal diamond
. A single 2D lens had an aperture of 1 mm and parabola apex radii of 200
µm. Forming a compound refractive lens with 24 single lenses within\, it
has been successfully tested in the focusing and imaging modes both at the
APS source [3] and at the laboratory setups using Cu Kα X-radiation from
the rotating anode generator and microfocus MetalJet X-ray tube with a li
quid-gallium jet as the anode using Ga Ka line. The lens has successfully
reproduced the triangular object with the theoretical demagnification whil
e the focusing of the 20 µm source was performed with the small deviation
from the theoretical value. \n\nThe present study demonstrated that laser
micro-fabrication technology provides a straight forward method for the f
abrication of single-crystal diamond refractive lenses with large acceptan
ce and high shape and surface (peak-to-valley roughness ~ 1µm) quality. U
nique optical properties of diamond single-crystal lenses (the refractive
index decrement\, δ\, in diamond is double that of beryllium) coupled wit
h its excellent thermal qualities (high thermal conductivity and shock res
istance\; low thermal expansion coefficient\; high temperature stability)
allow them to be applied as focusing\, imaging and beam-conditioning eleme
nts at high-heat flux beams of today and future X-ray sources.\n\n**Refere
nces**\n\n 1. Snigirev\, A.\, et al.\, A compound refractive lens for focu
sing high-energy X-rays. Nature\, 1996. 384(6604): p. 49-51.\n 2. Polikarp
ov\, M.\, et al.\, Large-acceptance diamond planar refractive lenses manuf
actured by laser cutting. Journal of Synchrotron Radiation\, 2015. 22(1):
p. 23-28.\n 3. Terentyev\, S.\, et al.\, Parabolic single-crystal diamond
lenses for coherent x-ray imaging. Applied Physics Letters\, 2015. 107(11)
: p. 111108.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1227/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1227/
END:VEVENT
BEGIN:VEVENT
SUMMARY:APPLICATION OF SHORT-WAVE DIFFRACTION OF SYNCHROTRON RADIATION FOR
IN-SITU INVESTIGATION OF ZIRCONIUM HYDRIDES FORMATION AT GAS-PHASE HYDROG
ENATION
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1228@indico.inp.nsk.su
DESCRIPTION:Speakers: Maxim Syrtanov (National Research Tomsk Polytechnic
University\, Tomsk\, Russia)\nZirconium alloys are widely used as construc
tion materials in an active zone of nuclear reactors. During operation of
such alloys in contact with a hydrogen-containing environment\, hydrogen p
enetrates into them. This significantly influences on the physical\, chemi
cal and mechanical properties of the material [1\,2]. To investigate the e
ffect of hydrogen accumulation on the zirconium alloys properties is neces
sary to prepare the experimental samples with different hydrogen concentra
tions and different distribution. However\, the hydrogenation process can
be hampered by the presence of a thin oxide film on the samples surface\,
which is greatly effect on the hydrogen distribution by material volume. T
he application of the nickel coating increases the hydrogen sorption rate.
Also nickel has a high permeability to hydrogen. Moreover\, the nickel ox
idation is less active than zirconium\, which contributes to hydrogen abso
rption.\n\nIn this paper zirconium alloy (Zr1%Nb) samples with a micron-or
der nickel layer were investigated. Hydrogenation was carried out by gas p
hase method at temperatures of 350\, 450 and 550 ° C. Hydrogen pressure i
n chamber was 1 atm. Hydrogen sorption curves were obtained on the automat
ed complex Gas Reaction Controller. In situ diffraction measurements were
carried out in the process of hydrogen saturation of samples at the statio
n "Precision diffractometry II» of the Institute of Catalysis of the Sibe
rian Branch of the Russian Academy of Science at the 6 synchrotron radiati
on channel of the VEPP-3 electron storage ring.\n \nComparison of the data
obtained in the analysis of hydrogen sorption curves with data of the pha
se transitions in the zirconium-hydrogen system at a gas phase hydrogenati
on allowed describing the processes occurring in zirconium by hydrogenatio
n at different temperatures. \n\n1. Silva K.-R.F.\, DosSantos D.S.\, Robei
ro A.F.\, Almeida L.H. Hydrogen diffusivity and hydride formation in rich-
zirconium alloys used in nuclear reactors // Defect and Diffusion Forum. 2
010. Vol. 297- 301. P. 722-727.\n2. Zielinski A.\, Sobieszczyk S. Hydrogen
-enhanced degradation and oxide effects in zirconium alloys for nuclear ap
plication // Intern. Journ. of Hydrogen Energy. 2011. Vol. 36. P. 8619-86
29.\n3. Kudiyarov V. N. \, Kashkarov E. B. \, Syrtanov M. S. \, Babikhina
M. N. \, Vlasov V. A. Investigation of hydrogenation parameters influence
on hydrogen sorption rate by Zr-1%Nb alloy with nickel layer // Извес
тия вузов. Физика. - 2015 - Т. 58 - №. 9/3. - C. 20-23\n\
nhttps://indico.inp.nsk.su/event/3/contributions/1228/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1228/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Study of the THz response of protein solutions at different stages
of glycation
DTSTART;VALUE=DATE-TIME:20160705T070000Z
DTEND;VALUE=DATE-TIME:20160705T072000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1229@indico.inp.nsk.su
DESCRIPTION:Speakers: Olga Cherkasova (Institute of Laser Physics of SB RA
S)\nProtein glycation is accelerated under hyperglycemic conditions result
ing in loss of the structure and biological functions of proteins. This pr
ocess plays a significant role in diabetic complications in organism tissu
es. THz spectroscopy is unique tool that can be used for analysis of biolo
gical tissues and solutions because changes in relative proportions of fre
e and bound water and in relaxation times for either of these states can a
ll be observed in THz range. A distinctive feature of this method is the p
ossibility of measuring directly the refractive index\, absorption coeffic
ient\, and hence complex permittivity spectrum of the sample in a single s
can and in a broad frequency range.\n The THz time-domain spectroscopy ha
s been used for measuring of bovine serum albumin (BSA) and monosaccharide
s solutions and studying of glycation dynamics for 0-96 h incubation BSA w
ith sugars. To detect small-scale changes in solutions and to increase the
significance of observations\, we have performed measurements using both
transmission and attenuated total internal reflection (ATR). By combining
the results obtained in both configurations\, the reliable range of the sp
ectrum can be considerably broadened (0.05-2.5 THz). \n The THz time-doma
in spectrometer used in the study was described previously [1]. The Fourie
r transform of the measured pulse time profile provides the complex spectr
um comprising information on the refractive and absorption indices of the
medium where the pulse has been reflected or transmitted. To recalculate t
he transmission spectrum into the absorption and refraction spectra\, we u
sed the Fresnel formulas and the methods described in [2].\n We analyzed
the reasons for the THz transmission changes of BSA and monosaccharides so
lution during incubation. The differences were analyzed by comparing exper
imental spectra to the model dielectric function of water. THz absorption
coefficient of glycated albumin solution increases during first several da
ys of incubation. Fructose demonstrated stronger and/or faster influence o
n THz absorption of BSA than glucose. We consider that glycation of BSA re
sults in a change the parameters of slow Debye relaxation. These results s
how that THz spectroscopy is a useful tool for study of protein glycation
in time.\n\nREFERENCES\n\n[1] Nazarov\, M. M.\, Shkurinov\, A. P.\, Kulesh
ov\, E. A.\, Tuchin\, V. V.\, “Terahertz time-domain spectroscopy of bio
logical tissues”\, Quantum Electron. 38\, 647-654 (2008).\n[2] Cherkasov
a\, O.P.\, Nazarov\, M. M.\, Angeluts\, A.A.\, Shkurinov\, A.P.\, “The I
nvestigation of blood plasma in the terahertz frequency range”\, Optics
and Spectroscopy 120(1)\, 50-57(2016).\n\ncorresponding author:\nCherkasov
a Olga Pavlovna\,\n630090\, Novosibirsk\, Prospect ak. Lavrent'ev\, 13/3\;
\nE-mail: o.p.cherkasova@gmail.com Tel: (383) 330-99-22\, 8-965-823-11-92\
n\nhttps://indico.inp.nsk.su/event/3/contributions/1229/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1229/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Accelerator development at NSRRC-from the first 3rd-generation lig
ht source in Asia to a low-emittance photon source
DTSTART;VALUE=DATE-TIME:20160704T043000Z
DTEND;VALUE=DATE-TIME:20160704T051000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1230@indico.inp.nsk.su
DESCRIPTION:Speakers: Gwo-Huei Luo (NSRRC)\nTaiwan Light Source (TLS) was
the first third generation light source in Asia and served to users in 199
3 with 1.3 GeV beam energy and 200 mA design current. The requests for hig
her photon energy and flux emerged from x-ray users’ community. After se
ries upgraded\, TLS has the capabilities running in top-up injection with
beam energy increased to 1.5 GeV and 360 mA of beam current. A six-fold sy
mmetry TLS storage-ring has 9 insertion devices installed\, which included
5 Super-Conducting (SC) wigglers and 4 conventional wiggler and undulator
s. In order to improve the instabilities threshold and the photon flux\, h
igher-order-modes (HOM)-free SC cavity was installed to replace primitive
Doris cavities in the ring. Academic and operation statics will be present
ed.\n\nTaiwan Photon Source (TPS) was designed to have extreme low emittan
ce\, 1.6 nm-rad.\, to push the x-ray brightness into world frontier in rin
g-based facilities. The ring is DBA lattice with 3 GeV beam energy and 500
mA of design beam current in 24-cells. Top-up injection with HOM-free SC
cavities are the target mode and power sources for day-one operation. The
design\, construction and commissioning results will be addressed in this
presentation.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1230/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1230/
END:VEVENT
BEGIN:VEVENT
SUMMARY:System for diagnostics of local electron beam losses in microtron-
recuperator at Novosibirsk Free Electron Laser beamline via registration o
f induced X-rays.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1231@indico.inp.nsk.su
DESCRIPTION:Speakers: Stanislav Serednyakov (Budker Institute Of Nuclear P
hysics)\nThe Novosibirsk Free Electron Laser (FEL) is based on a 4-turn mi
crotron-recuperator. To ensure its stable operation and radiation generati
on\, it is necessary to provide a stable mode of electron beam recirculati
on and minimize beam losses on the vacuum chamber wall on all the way of b
eam in the accelerator beamline. To fulfil this task it is necessary to k
now the longitudinal distribution of these losses along the beamline.\nTo
this end\, a system for registration of beam losses was created. The syste
m applies optical fibers placed along the full length of the vacuum chambe
r and nearby it. In case of local electron beam losses somewhere in the va
cuum chamber\, electrons falling to the vacuum chamber wall cause generati
on of X- and gamma rays. This radiation in turn causes generation of optic
al radiation in the optic fiber nearby the region of electron “precipita
tion” on the chamber wall. Then\, executing some transformation and proc
essing of the time dependencies of signals from these optic fibers\, one c
an obtain the longitudinal distribution of electron beam losses along the
whole accelerator channel in all its 4 turns.\n\nhttps://indico.inp.nsk.su
/event/3/contributions/1231/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1231/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Influence of terahertz laser irradiation on the morphology of chic
ken hepatocytes
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1232@indico.inp.nsk.su
DESCRIPTION:Speakers: Eugeny Zelentsov (MC "Integral medicine")\nPreviousl
y\, we have discovered the erythrocyte membrane disruption in aqueous solu
tion under the influence of high-power pulses of the Novosibirsk free elec
tron laser operated at the wavelength of 120-170 microns\, with the averag
e power density of 10W/cm2. This fact was explained by the emergence of po
werful ultrasound caused by water absorption of terahertz radiation. In th
is report hepatocytes were studied under the same conditions. The aim of t
he study was to evaluate the effects of radiation on normal hepatocytes in
comparing with previous studies of red blood cells.\nLiver fragments were
sampled and transferred into 500ul of aqueous suspension and irradiated w
ith non-focused beam at different exposure time. Samples were examined his
tologically using the atomic force microscopy (tapping mode) in the native
form. Exposure of 2-4 seconds resulted in single membrane injuries and a
slight change in the shape of hepatocytes. Exposure of 5- 10 seconds or mo
re leads to significant damage of hepatocyte membranes.\nResults have full
y confirmed the earlier experiments. Destructive effects of high-power THz
pulses on biological objects in the aquatic environment were proven.\n\nh
ttps://indico.inp.nsk.su/event/3/contributions/1232/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1232/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Progress in the design and related studies on the High Energy Phot
on Source
DTSTART;VALUE=DATE-TIME:20160704T074000Z
DTEND;VALUE=DATE-TIME:20160704T082000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1233@indico.inp.nsk.su
DESCRIPTION:Speakers: Yi Jiao (Institute of High Energy Physics)\nThe High
Energy Photon Source (HEPS)\, a kilometre-scale diffraction limited stora
ge ring light source\, with energy of 5 to 6 GeV and emittance of a few te
ns of pm.rad is to be built in Beijing and now is under design. In this pa
per we reported the progress of the physical studies for the HEPS project\
, covering issues of storage lattice design and optimization\, resonance e
ffect evlatuion\, booster design\, injection design\, collective effect st
udy\, error study\, etc.\n\nhttps://indico.inp.nsk.su/event/3/contribution
s/1233/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1233/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Superconducting 72-pole indirect cooling 3Tesla wiggler for CLIC d
umping ring and ANKA image beamline
DTSTART;VALUE=DATE-TIME:20160704T105000Z
DTEND;VALUE=DATE-TIME:20160704T111000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1234@indico.inp.nsk.su
DESCRIPTION:Speakers: Vitaliy Shkaruba (BINP)\nOne of the directions of BI
NP activity is the creation of multipole superconducting wigglers with the
magnetic field levels from 2 T to 7.5 T which are installed on many SR so
urces. Special efforts were made by BINP to develop the cryogenic system w
ith zero liquid helium consumption. The next significant step became the d
esign and creation of superconducting full size prototype of dumping wiggl
er for CLIC project where supposed the installation of 104 wigglers. For o
peration of CLIC dumping wiggler it is required the magnetic field of 3 T
and the period about 50 mm with a beam vertical aperture of 13 mm. Design
features of the wiggler which was proposed and created by BINP is the app
lication of the indirect cooling method. In this case Nb-Ti magnet with t
he length of 1.8 m and the weight of 700 kg is located in a vacuum and is
cooled by four Gifford-McMahon cryocoolers. To maintain the temperature a
bout 4.2 K on the magnet it is used the tubes with circulating liquid heli
um as the heat conducting elements. To increase the efficiency of pre-coo
ling down of the magnet it is used nitrogen-based heat pipes of siphon typ
e. The features of the magnetic and cryogenic systems of CLIC dumping wi
ggler full size prototype and test results are presented in this article.\
n\nhttps://indico.inp.nsk.su/event/3/contributions/1234/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1234/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Small angle X-ray scattering on RE31 aptamer
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1235@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Zabluda (Kirensky Institute of Physics Russ
ian Academy of Sciences\, Siberian Branch)\nThis work shows aptamer RE31 (
5′-GTGACGTAGGTTGGTGTGGTTGGGGCGTCAC-3′) by small angle X-ray scattering
(SAXS) measuring results\, wich obtained on DIKSI station in the Nationa
l Research Center 'Kurchatov Institute'. Also the aptamer structure model
is presented\, wich was processed in DAMMIN software.\nAccording to obtain
ed model\, the molecular simulation was constructed with known nucleotides
considering interatomic interactions.\nWe have compared aptamer model fro
m SAXS with crystallographic method and confirmed\, that SAXS can provide
us the information about the size and native shape of bioaptamers in solut
ion. However SAXS method doesn’t require the crystal growing and high co
ncentrations for measuring.\n\nhttps://indico.inp.nsk.su/event/3/contribut
ions/1235/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1235/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Radiation therapy of human glioma tumors experiments in SSTRC
DTSTART;VALUE=DATE-TIME:20160705T050000Z
DTEND;VALUE=DATE-TIME:20160705T052000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1236@indico.inp.nsk.su
DESCRIPTION:Speakers: Konstantin Kuper (Budker Institute of Nuclear Physic
s)\nIn modern society\, brain diseases belong to most frequent causes of d
eath and reduction of the working age. For prevention and treatment of neu
ropathology\, a variety of therapeutic and surgical approaches are being d
eveloped and improved\, including radiation therapy methods. These methods
have got a significant impetus to improvement through the creation of hig
h-energy radiation sources and development of tools providing accurate tar
geting and strict time dosing in radiotherapy. Microbeam synchrotron radia
tion is one of the most promising trends in the modern radiotherapy. This
technology is based on the use of synchrotron flux split into separate mic
robeams. Such spatial arrangement allows one to significantly amplify the
dose on targets\, e.g. tumors\, without causing significant damage to heal
thy tissue.\nIn our work we try to offer new possibilities for improving t
herapeutic technologies based microbeam radiation which is consists in com
bined use of radiotherapy and applying nanoparticles. In our experiments w
e used of combination of the effect of radiotherapy with saturation of tum
or cell with nanoparticles of metal oxides\, including particles with high
catalytic activity. This combination may provide a synergistic effect fo
r cytolysis of glioma cells based on nanoparticles enhance oxidative effe
ct of reactive oxygen.\nIn present time we search optimal combination of c
omplex approach to the radio and chemo therapy of human glioma tumors.\n\n
https://indico.inp.nsk.su/event/3/contributions/1236/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1236/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Deflection of THz vortex beam in non-polar liquids by means of aco
usto-optics
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1237@indico.inp.nsk.su
DESCRIPTION:Speakers: Pavel Nikitin (Lomonosov Moscow State University)\nI
nteraction of terahertz vortex beam and bulk acoustic wave in a number of
non-polar liquids was investigated. It was found that hexane is the most p
romising liquid for acousto-optic applications. The diffraction efficiency
for the vortex beam was of the same magnitude as for non-vortex beam.\n\n
https://indico.inp.nsk.su/event/3/contributions/1237/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1237/
END:VEVENT
BEGIN:VEVENT
SUMMARY:In situ SR SAXS study of liquid intermediates arising during nucle
ation of gold sulfide nanoparticles in aqueous media
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1239@indico.inp.nsk.su
DESCRIPTION:Speakers: Maxim Likhatskiy (ICCT SB RAS)\nRecently\, using DLS
\, AFM (both\, in situ and ex situ)\, STM and SAXS techniques\, we found a
series of fluid nanoscale intermediates preceding nucleation of gold sulf
ide in the reaction between aqueous HAuCl4 and sodium sulfide. In present
contribution SR SAXS technique was applied to monitor the size evolution o
f scatterers which are presented initially by “liquid clusters”. The
“liquid clusters” were found to have a small negative charge and coale
scence into larger species exhibiting negative zeta-potential of about 30-
40 mV and associating to submicrometer aggregates. The nucleation and foll
owing aggregation of gold sulfide nanoparticles proceed progressively rath
er than instantly. The processes were accelerated critically by the addit
ion of 0.05M NaCl solution or at elevated temperatures. On the onset of re
action single fraction sticky spheres model fits the experimental SAXS dat
a satisfactorily. However\, starting from some instance\, the second (smal
ler in size) fraction needs to be taken into account to successfully descr
ibe the SAXS data\, which means that SAXS can be used to get insights into
the prenucleation and nucleation processes.Similiar results were taken fo
r the process of hexachloroplatinic acid reduction by sodium sulfide.\n\nh
ttps://indico.inp.nsk.su/event/3/contributions/1239/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1239/
END:VEVENT
BEGIN:VEVENT
SUMMARY:SR XRF USED TO STUDY THE CONTENT OF CHEMICAL ELEMENTS IN THE LEAVE
S OF LONICERA CAERULEA (CAPRIFOLIACEAE)\, DEPENDING ON THE CHANGE IN SEISM
IC ACTIVITY
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1240@indico.inp.nsk.su
DESCRIPTION:Speakers: Irina Boyarskikh (Central Siberian Botanic Garden\,
SB RAS)\nThe active\, deep faults of lithosphere are the channels\, carryi
ng the flows of substance and energy\, that can affect natural environment
\, to the surface of the planet. The ascending migration of fluids and the
emanation of gases in the zones of active\, tectonic faults have a promin
ent effect on the distribution of chemical elements in soil\, air\, and p
lants. The impact of the active faults on biota is subjected to temporal v
ariations due to seismic changes. The present work studies the content of
chemical elements in the leaves of Lonicera caerulea L. (blue honeysuckle)
over the region characterized by a high\, seismic activity and the novel
tectonic faults related to the central part of the Chuiskii earthquake of
2003. The studies were performed in 2004\, 2008-2010 during a gradual decr
ease in seismic activity in this zone. The total content of micro- and mac
roelements in soil and their accumulation in vegetable leaves were determi
ned by the method of X-ray fluorescence analysis using synchrotron radiati
on (SR XRF) at the station of element analysis of the Siberian Center of S
ynchrotron and Teraherz Radiation\, Budker Institute of Nuclear Physics (V
EPP-3 storage ring). Fluorescence was excited by monochromatized synchrotr
on radiation with an energy of 23 and 38 keV\, which allowed one to analyz
e the elements from K to Ba by the K-series\, and from Pb by the L-one of
the characteristic X-ray radiation. The concentration of an active form of
the elements was measured in soil by atom-absorption method. The intensit
y of the biological absorption of the elements by the leaves of blue honey
suckle was estimated by the coefficient of biogeochemical activity\, i.e.\
, the ratio between the element content in the dry substance of plants an
d the concentration of the active element form in soil. The SR XRF method
made is possible to study the relation between 26 elements in vegetable le
aves and in soils with high sensitivity (n*10-9 g/g) within a wide concent
ration range in small samples (10-30 mg). A comparative estimation of the
element content in the leaves of L. caerulea subsp. altaica\, collected in
the zone of the active\, tectonic fault in different years\, indicated th
at during the period of high seismic activity (2004) the concentrations o
f K\, Fe\, Cu\, Ti\, V\, Zr\, and Nb in plants decrease and those of Ca\,
Ba\, Br\, and Sr increase. In this case\, the relations between the basic
elements (biophils) also changed. A reliable\, positive connection was est
ablished between the gross content of Ca\, Sr\, and Ti in soil and leaves.
The linear relations between the gross content and the content of the act
ive form of biophilic elements Ca\, Zn\, and Sr in soils were also positiv
e. In 2004\, a more intense accumulation of secondary metabolites\, i.e.\,
chlorogenic acid and glycoside лютеолина\, involved in the regul
ation of the mineral supply of plants\, was recorded in the leaves\, colle
cted in the fault zone.\n\nhttps://indico.inp.nsk.su/event/3/contributions
/1240/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1240/
END:VEVENT
BEGIN:VEVENT
SUMMARY:STABILITY OF THE ELEMENT COMPOSITION OF VEGETABLE SAMPLES WITH LON
G -TERM STORAGE
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1241@indico.inp.nsk.su
DESCRIPTION:Speakers: Elena Khramova (Central Siberian Botanic Garden\, SB
RAS)\nThe content and composition of the elements of vegetable samples ha
ve been first analyzed in connection with storage periods by the method of
X-ray fluorescence analysis\, using synchrotron radiation (SR XRF).\nThe
objects of studying were the samples of Pentaphylloides fruticosa\, cultiv
ated in the gradient of radionucleotide contamination over the territory o
f the East-Ural radioactive trace (EURT)\, formed in 1957 due to the accid
ent at the IM “Mayak” (the town of Ozersk\, Chelyabinskaya oblast) and
in the conditionally “background” region of the observation area. In
2005\, the samples of the P. fruticosa leaves and stems\, collected in fo
ur EURT regions\, were analyzed and in 2015 the same samples were analyzed
after a 10-year storage period.\nIt has been established that the element
composition of the samples was almost the same. In 2005\, 18 elements wer
e discovered\, and in 2015 additional two elements (Cr and Nb) were determ
ined\, probably\, because of the improving potentialities of the method.\n
The content of K\, Ca\, Mn\, Fe\, Co\, Cu\, Zn and Sr in the samples of 20
05 and 2015 remained practically the same. As a rule\, the values varied b
y 1 – 50% \, depending on the organ and the environment. More considerab
le variations were observed in the content of Ti\, V\, Ni\, As\, Rb\, Br\,
Y\, Zr\, Mo and Pb\, which may be assigned to the increase in the relativ
e standard deviation (%) as the measure of analysis reproducibility for th
ese elements. In this case\, as compared with 2005\, in 2015 a noticeable
decrease (2-4-fold) was recorded in the content of As and Br in the sample
s of the leaves except for those from the “background” region for whic
h the difference was only 30-35%.\nThus\, the element composition of P. fr
uticosa\, analyzed just after collection\, and the element composition of
that kept for 10 years\, were similar. The most stable are K\, Ca\, Mn\, F
e\, Co\, Cu\, Zn and Sr. The tendencies to element accumulation by plants
in the gradient of nucleotide pollution were preserved independent of stor
age period.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1241/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1241/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Exciton-like and defect-related luminescence in K3WO3F3 oxyfluori
de crystals
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1242@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Pustovarov (Ural Federal University)\nCompl
ex metal oxyfluorides such as K3WO3F3 are attractive compounds for develop
ing new noncentrosymmetric crystals having ferroelectric and ferroelastic
properties. This is achieved due to the strong distortion of metal-(O\,F)
polyhedra in crystal lattice because of different ionicity of metal-O and
metal- F bonds. The luminescence spectroscopy can be a sensitive method to
study the character of lattice distortion of these compounds.\nSpectra of
photoluminescence (PL) and X-ray excited luminescence\, PL excitation spe
ctra (3–22 eV)\, PL decay kinetics as well as thermoluminescence curves
were measured for single crystals and ceramics K3WO3F3. Synchrotron radiat
ion (HASYLAB\, DESY\, Hamburg) were used for low temperature PL experiment
s with time resolution. Crystals were grown and examined in Institute of G
eology and Mineralogy SB RAS (Novosibirsk). \nThe intrinsic luminescence o
f tungstates is usually ascribed to the radiative relaxation of exciton-li
ke excitations localized on WO6 octahedra or WO4 tetrahedra. In K3WO3F3 th
ere are anion sites with mixed oxygen/fluorine occupancy. Therefore\, diff
erent octahedra form with different distortion. Two emission centers of ex
citon-like origin\, with distinct relaxation time\, different types of suc
h octahedra were found. The time-resolved luminescence spectroscopy techni
que was applied to distinguish these centers\, proving itself as a sensiti
ve method to study the character of lattice distortion. The energy transfe
r mechanism between these PL centers is found and tentatively described by
the diffusion of excitons. Apart from intrinsic luminescence\, the PL of
defect-related centers was found in samples irradiated by fast electrons f
rom linear accelerator (E=10 MeV\, D=120 Gy). The role of shallow charge c
arrier traps in the low-temperature luminescence was revealed.\n\nhttps://
indico.inp.nsk.su/event/3/contributions/1242/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1242/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Structural parameters of macroscopically flat lipid multilayers on
a silica sol substrates
DTSTART;VALUE=DATE-TIME:20160705T072000Z
DTEND;VALUE=DATE-TIME:20160705T074000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1243@indico.inp.nsk.su
DESCRIPTION:Speakers: Yuriy Volkov (Shubnikov Institute of Crystallography
\, FSRC “Crystallography and Photonics” RAS)\nA phospholipid bilayer o
n liquid substrate can be used as the simplest model of a cell membrane [1
]. Previously\, the method of preparation of macroscopically flat regular
lipid multilayers with the use of colloidal silica hydrosols as substrates
has been proposed [2]. Due to the specific boundary conditions at air/sol
interface\, polar lipid molecules exhibit a spontaneous ordering effect.\
n\nIn this report we present the investigations of influence of hydrosol c
ompound (i.e. size of silica nanoparticles\, pH level and concentration of
alkali ions) on the structural parameters of phospholipid layers by the X
-ray reflectometry method with the use of synchrotron radiation. Model pho
sphatidylcholine lipids DSPC\, DPPC and SOPC have been used as samples. Ex
periments have been carried at X19C beamline (radiation energy E = 15 keV)
of NSLS facility\, Brookhaven. Depth-graded distributions of electron den
sity have been extracted from the measured reflectivity curves by the mode
l-independent reconstruction algorithm [3].\n\nAccording to the obtained r
esults\, overall thickness of lipid film is consistent with the Debye leng
th for the substrate sol and thus can be varied from the monolayer (d ~ 35
Å) to the stack of bilayers (d ~ 450 Å) at pH $\\approx$ 11.5 and 9 res
pectively. Separate mono- and bilayers exhibit high degree of structural p
erfection\, with calculated lipid area $A = 45 \\pm 2$ and $49 \\pm 3$ Å$
^2$ being in agreement with the theoretical values for 2-dimensional phosp
holipid crystal. Enrichment of the substrate with Na$^+$ and Cs$^+$ leads
to the absorption of alkali ions into the lipid membrane\, with the surfac
e concentration of ions up to $2 \\times 10^{19}$ m$^{-2}$.\n\n[1] D. M. S
mall\, "The Physical Chemistry of Lipids"\, Plenum Press\, NY (1986).\n\n[
2] A. M. Tikhonov\, JETP Letters\, 2010\, 92:394.\n\n[3] I. V. Kozhevnikov
\, Nucl. Instr. Meth. Phys. Res. A\, 2003\, 508:519.\n\nhttps://indico.inp
.nsk.su/event/3/contributions/1243/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1243/
END:VEVENT
BEGIN:VEVENT
SUMMARY:XAFS study of catalytic nanosystems promising for environmental ca
talysis
DTSTART;VALUE=DATE-TIME:20160707T044000Z
DTEND;VALUE=DATE-TIME:20160707T050000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1244@indico.inp.nsk.su
DESCRIPTION:Speakers: E.P. Yakimchuk (Boreskov Institute of Catalysis of S
B RAS\, Novosibirsk\, Russia)\nRecently\, low-content supported mono- and
bimetallic catalytic nanosystems containing transient and noble metals ins
pire great interest in researchers\, because of their practical applicatio
n for a wide range of processes of environmental catalysis owing to the po
ssibility of varying catalytic properties\, relatively low cost of the fin
al products\, and ease of recovery of expensive components of the exhauste
d catalysts. The samples of modeljed catalysts ~1% (Pt\, PtCo\, Pd\, PdCo
\, PdMn and others) were obtained by varying preparation methods of active
component (deposition-precipitation\, zol-gel\, ion exchange\, MOCVD ) fr
om mono- and heterometallic precursors of different nature. Nanoparticles
of active component were located on various supports (C\, SiO2\, Al2O3\,
TiO2\, ZrO2) and different activation and reduction conditions were used.
All XAFS spectra of the studied samples were recorded at the Siberian Sync
hrotron and Terahertz Radiation Center (SSTRC\, Novosibirsk). Genesis of
the state and local structure arrangement of supported metal nanoparticles
of the studied catalytic nanosystems were characterized in detail. Correl
ations between their catalytic properties\, local structure distortions an
d state of metal components were demonstrated. The interatomic distances a
nd corresponded coordination numbers were calculated by fitting. All possi
ble structural models were discussed. Additionally\, morphology and compos
ition of the samples of catalysts were studied by the TEM\, EDX and XPS me
thods . The data obtained by all the methods are in a good agreement. \n\n
The work was done using the infrastructure of the Shared-Use Center “Sib
erian Synchrotron and Terahertz Radiation Center (SSTRC)” based on VEPP-
3 of BINP SB RAS. This work was supported by RFBR (140301066\, 163350248\,
163350249\, 163350250\, 160301139)\, SB RAS comprehensive program II.2P (
Project 0305-2015-0018).\n\nhttps://indico.inp.nsk.su/event/3/contribution
s/1244/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1244/
END:VEVENT
BEGIN:VEVENT
SUMMARY:XAFS study of model flotation system - xanthate/zinc sulphate: stu
ctural determination of interaction forms existing in aqueous solution and
deposition.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1245@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Kriventsov (Boreskov Institute of Catalysis
)\nPresently our country takes the first place in terms of reserves and pr
oduction of mineral resources\, but the quality of many ore deposits is lo
w. Ores most involved in the development of new deposits can be classified
hard-to-concentrate\, with a low content of useful components. Existing t
echnologies of enrichment in some cases do not correspond to the quality o
f modern ores. So Russia\, having large mineral reserves\, faces difficult
ies in providing new technologies that can cost-effectively and efficientl
y process those materials. The decision of the problem of increasing the p
rofitability of processing minerals and improving comprehensiveness of the
ir enrichment are of paramount importance. One of the possible technologic
al solutions is the developing approach of selective flotation separation
of minerals with optimization of the proportion and properties of chemical
and physical forms of sorption by combining different types of flotation
reagents. One of the most popular reagents is butyl xanthate potassium\, w
hich is widely used for the extraction of valuable components by flotation
in aqueous solution.\nThe main aim of this work is a study of model flota
tion system - xanthate/zinc sulphate by the method of XAFS spectroscopy. A
ll EXAFS and XANES spectra (Zn-K edge) of the samples studied (both in sol
ution and deposition) were recorded at EXAFS station of Siberian Synchrotr
on Terahertz Radiation Center (SSTRC). Some differences of local structur
e of initial solutions of zinc sulfate (having different concentrations fr
om ~10-4 up to 10-1 mol/l) between each other and great ones compared to t
he bulk samples were found. The presence of different Zn-O forms were dete
cted. For the model flotation system - xanthate/zinc sulphate in aqueous s
olution\, Zn-S forms were predominantly found. Structural determination of
all interaction forms existing in aqueous solution and deposition were ca
rried out in detail. All possible structural models were discussed. Additi
onally powder samples of initial reagents and final depositions were chara
cterized by XRD. The atomic structures of initial bulk sample were establi
shed.\nThe work was done using the infrastructure of the Shared-Use Center
"Siberian Synchrotron and Terahertz Radiation Center (SSTRC)" based on VE
PP-3 of BINP SB RAS. This work is supported by Russian Scientific Foundati
on (Project No 15-17-10017).\n\nhttps://indico.inp.nsk.su/event/3/contribu
tions/1245/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1245/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Near-surface regions of chalcopyrite studied using XPS\, HAXPES\,
XANES and DFT
DTSTART;VALUE=DATE-TIME:20160707T050000Z
DTEND;VALUE=DATE-TIME:20160707T052000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1246@indico.inp.nsk.su
DESCRIPTION:Speakers: Yuri Mikhlin (Institute of Chemistry and Chemical Te
chnology of the Siberian Branch of the Russian Academy of sciences)\nChalc
opyrite CuFeS2\, is the most common mineral of copper\; chalcopyrite and r
elated compounds are of interest for thermoelectric\, photovoltaic and oth
er applications. We also examined valleriite (Fe\,Cu)S(Mg\,Al)(OH)2\, natu
ral nanocomposite composed of chalcopyrite-like Fe\,Cu sulfide layers and
brucite-like oxide layers\, which is important mineral of Norilsk ore depo
sits. Conventional XPS and synchrotron-based hard photoemission spectrosco
py (HAXPES)\, surface-sensitive Cu L-\, Fe L-\, S L-edge TEY XANES and S K
-\, Fe K-edge TEY and PFY XANES spectroscopy were used along with some oth
er experimental techniques and DFT+U calculations in order to characterize
near-surface regions of the initial (in fact\, oxidized in air) minerals
and the ones chemically oxidized in Fe(III) solutions. The synchrotron irr
adiation experiments were performed at Russian-German laboratory and HIKE
endstations at BESSY II facility (Helmholtz Zentrum Berlin). Both the elem
ent concentrations and the chemical state of atoms\, e.g.\, mono-\, di-\,
polysulfide and other S species\, as a function of the probing depth and t
he reaction conditions\, were studied. The near-surface regions of chalcop
yrite are generally consist of (i) a thin\, no more than 1-4 nm\, strongly
metal-depleted outer layer containing polysulfide species\, (ii) a layer
with smaller stoichiometry deviations and low\, if any\, concentrations of
polysulfide\, which composition and dimensions strongly depend on the che
mical treatment conditions\, and (iii) an about stoichiometric underlayer
extended to at least several dozen of nanometers. The latter shows Fe K-ed
ge TEY spectra altered probably due to a high content of defects\, even if
only oxidized in ambient air. In contrast to other spectra\, Cu L-XANES p
atterns were surprisingly insensitive to the changes of the composition of
the reacted near-surface layers. DFT+U analysis of the iron-deficient str
uctures formed shows that polysulfide species are stable only near the sur
face\, copper remains 4-fold coordinated to S in the layers with disulfide
anions\, the layer with iron deficiency transforms from antiferromagnetic
and semiconducting state into paramagnetic metallic state. Moreover\, the
formation of these structures is generally energy-favorable under the oxi
dative conditions. The lengthy regions are expected to heavily affect the
electronic characteristics and processes involving surface and interfacial
charge transfer.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1246/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1246/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Current status of EXAFS station of SSTRC. Application of XAFS spec
troscopy for the study of promising functional nanomaterials.
DTSTART;VALUE=DATE-TIME:20160707T030000Z
DTEND;VALUE=DATE-TIME:20160707T032000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1247@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Kriventsov (Boreskov Institute of Catalysis
)\nNowadays the method of XAFS spectroscopy in a different methodical opti
ons using of SR sources is a recognized powerful tool to study the state o
f the elements and the local structure for the various nanosystems having
different aggregation: alloys\, high dispersed material\, semiconductors\,
solutions\, glasses and others. \nIn this report\, by the example of work
s performed at the EXAFS station of SSTRC\, for a variety of nanosized sys
tems used in catalysis\, materials science\, biology\, demonstrated the po
ssibility of XAFS spectroscopy\, as an independent method and in combinati
on with other physical methods of research - HRTEM\, XRD\, XPS\, SEM. The
prospects of an integrated approach to study of nanostructured systems: di
lute encapsulated ordered semiconductor nanostructures\, nanocomposite cat
alysts having complex composition\, biological nanomaterials and others ar
e shown.\nThe work was done using the infrastructure of the Shared-Use Cen
ter “Siberian Synchrotron and Terahertz Radiation Center (SSTRC)” base
d on VEPP-3 of BINP SB RAS. This work was supported by Russian Academy of
Sciences and Federal Agency of Scientific Organizations\, SB RAS comprehen
sive program II.2P (Project 0305-2015-0018)\, RFBR (140301066\, 160301139)
.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1247/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1247/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Synchrotron radiation X-ray tomographic microscopy\, noble gas mas
s spectroscopy\, infrared and Raman microscopy correlated study of the Ito
kawa asteroid particles returned by the Hayabusa space probe
DTSTART;VALUE=DATE-TIME:20160706T050000Z
DTEND;VALUE=DATE-TIME:20160706T053000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1277@indico.inp.nsk.su
DESCRIPTION:Speakers: Sergey Pavlov (German Aerospace Center)\nThe analysi
s of ateroid’s surface grains allows to match remote observations and mo
deling of its history and current properties with laboratory experiments.
Mass spectrometry and electron microscopy of the dust enables detailed stu
dy of the history of asteroidal regolith and compare the results with theo
retical considerations of the evolution of rubble piles in the inner solar
system. A correlated study including consequential Raman and infrared mic
rospectroscopy\, synchrotron radiation X-ray tomographic microscopy (SRXTM
) and noble gas mass spectroscopy has been implemented for the determinati
on of cosmic-ray exposure ages and trapped Xe content in a few particles r
eturned by the JAXA’s Hayabusa space probe from the near-Earth asteroid
25143 Itokawa\, the first successful sample return mission to an asteroid.
New data support the uniformly short exposure to cosmic rays of the Itoka
wa regolith of \n\nhttps://indico.inp.nsk.su/event/3/contributions/1277/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1277/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The experimental station "DETONATION" at beamline 8 from 7 pole 1.
3 T wiggler installed at e+e- collider VEPP-4
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1248@indico.inp.nsk.su
DESCRIPTION:Speakers: Aleksandr Kosov (Budker INP SB RAS)\, Boris Tolochko
(Institute of solid state chemistry and mechanochemistry)\nThe new experi
mental station "Detonation" was put into operation in test mode on the 8-t
h synchrotron radiation beamline from collider VEhPP-4. The station was de
signed for the study of detonation and shock-wave processes in condensed m
edia in conditions approaching parameters (geometrical dimensions\, weight
)\, used in practical\, industrial applications.\nStation "Detonation"\, u
ses radiation of 7-pole wigglers (five main poles with the field of 1.3 T
and the two side\, with half the field [1])/ The new station has a signifi
cantly higher parameters as compared with the previous station at VEPP-3\,
experimental values of the basic parameters such as the intensity and spe
ctrum stiffness\, and volume of the explosion chamber permissible increase
weight of explosion samples. This makes it possible to significantly redu
ce the influence of confounding factors\, specific to the explosive sample
is small and connected with the influence of the near surface\, the curva
ture of the front\, and so on. The main detector at the new station will p
osition sensitive detector DIMEX [2]\, the use of which the station "Explo
sion" VEhPP-3 drive has shown great potential methods associated with the
use of synchrotron radiation to study fast processes [3].\n\n[1] M.G. Fedo
tov\, S.I. Mishnev\, V.E. Panchenko\, et al. SR front ends of VEPP-4M stor
age ring. Nucl. Instr. and Meth. A 470 (2001) 89-93.\n[2] V.M. Aulchenko\,
B.P. Tolochko\, L.I. Shekhtman\, et al. Fast high resolotuion gaseous det
ectors for diffraction experiments and imaging at synchrotron radiation be
am. Nuclear Instr. and Meth. A 623 (2010) 600-602.\n[3] K.A. Ten\, E.R. Pr
uuel\, V.M. Titov. SAXS Measurement and Dynamics of Condensed Carbon Growt
h at Detonation of Condensed High Explosives. Fullerenes\, Nanotubes\, and
Carbon Nanostructures. 20: 587-593. 2012.\n\nhttps://indico.inp.nsk.su/ev
ent/3/contributions/1248/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1248/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Hydrostatic and shock-wave compression of a molecular crystals
DTSTART;VALUE=DATE-TIME:20160706T042000Z
DTEND;VALUE=DATE-TIME:20160706T050000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1249@indico.inp.nsk.su
DESCRIPTION:Speakers: Ewgeny Smirnov (РRFNC-FNIITF\, Snezhinsk\, Russia)\
nThe report presents analysis of experimental data on hydrostatic and shoc
k-wave compression of energy-saturated material. The semi-empirical Mie-Gr
uneisen equation of state was used to describe thermodynamic properties of
metastable molecular crystals without considering phase transitions. The
equation of state describes experimental data on isothermal compression of
a molecular crystal\, and this data is obtained using the powder diffract
ion method. The Hugoniot curve expression plausibly describes shock-compre
ssion data on the studied material having various initial porosities.\n\nh
ttps://indico.inp.nsk.su/event/3/contributions/1249/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1249/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Investigation of the principles of detection of small amounts of n
anoparticles of drugs and their conglomerates during the synthesis and tra
nsport in vivo using methods of X-ray synchrotron radiation
DTSTART;VALUE=DATE-TIME:20160705T054000Z
DTEND;VALUE=DATE-TIME:20160705T060000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1250@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexey Ancharov (Institute of Solid State Chemistry
and Mechanochemistry SB RAS)\nThe basic idea of the investigation is using
the unique properties of the synchrotron radiation can receive informatio
n about the drug are in the gastrointestinal tract (GIT) of a living body
at low concentrations. In particular: the phase state\, i.e\, tablet disso
lved in the stomach or not\; the charge state\, i.e\, the drug is active o
r passive\; of the time (and place) of sedimentation of the drug\; about t
he localization of the drug on the damaged wall of the digestive tract.\nI
n this project\, the first steps was made towards the realization of the i
dea with using a model system. The experiment was conducted at the experim
ental station of synchrotron radiation (SR) №4 VEPP -3. Medicament (in o
ne experiment in the crystal\, and in the other - in liquid form) was pour
ed into the stomach of a turkey\, and irradiated with a narrow beam with a
n energy 33.7 keV. With area detector mar-350 diffraction pattern of the d
rug was reseved\, imposed on the scattering from the tissue of the stomach
. The main objective was to allocate the sum of the diffraction pattern in
formation about the structure of the drug. The main result of the experime
nt - using SR can receive information about the crystal lattice of drugs i
n real biological.\nThus\, using the an unique properties of synchrotron r
adiation in this study managed to obtain structural information about drag
\, are in conditions close to real ones (in terms of interaction with X-ra
ys) - virtually the same as in the stomach of a living organism. The drug
was in solid or in dissolved form.\nAs an object of research we selected a
nti-ulcer drug substance based on bismuth tripotassium dicitrate (BTD). BT
D is a drug with bactericidal activity against Helicobacter pylori has ant
i-inflammatory and astringent. Work was carried out on behalf of the Minis
try of Health RF for the development of domestic analogue drugs De Nol (Ne
therlands).\nThe project succeeded in synthesizing a complete analogue of
imported medicines De-Nol (Netherlands) and to explore its metabolism in t
he chemical environment similar to the environment in different parts of t
he gastrointestinal tract.\nBy simulating the behavior of BTD in the gastr
ointestinal tract by small-angle x-ray scattering discovered that bismuth
forms a stable complex of a colloidal particle. The particle has size in o
rder of 22 A. If the solution is diluted with water particle size changes.
\nThe structure of the colloidal particles was investigated by X-ray diffr
action on a synchrotron radiation beam. It was found that the structure is
sensitive to pH\n\nhttps://indico.inp.nsk.su/event/3/contributions/1250/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1250/
END:VEVENT
BEGIN:VEVENT
SUMMARY:X-ray Dark-Field Imaging (XDFI): Recent Developments and Clinical
Applications
DTSTART;VALUE=DATE-TIME:20160705T024000Z
DTEND;VALUE=DATE-TIME:20160705T032000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1251@indico.inp.nsk.su
DESCRIPTION:Speakers: Masami ANDO (Tokyo University of Science)\nThis pape
r describes a novel x-ray phase contrast imaging technique called X-ray da
rk-field imaging (XDFI) that has been under development for the past 10 ye
ars. We describe the theory behind XDFI\, the x-ray optics required for im
plementing it in practice\, and algorithms used for 2D\, 2.5D\, and 3D ima
ge reconstruction. The XDFI optical chain consists of an asymmetrically cu
t\, Bragg-type monochromator-collimator that provides a planar monochromat
ic x-ray beam\, a positioning stage for the specimens\, a Laue-case angle
analyzer\, and one or two cameras to capture the dark and bright field ima
ges. We demonstrate soft-tissue discrimination capabilities of XDFI by rec
onstructing images with absorption and phase contrast. By using a variety
of specimens such as breast tissue with cancer\, joints with articular car
tilage\, ex-vivo human eye specimen\, and others\, we show that refraction
-based contrast derived from XDFI is more effective in characterizing norm
al anatomy\, articular pathology\, and neoplastic disease than the convect
ional absorption-based images. For example\, XDFI of breast tissue can dis
criminate between the normal and diseased terminal duct lobular unit\, and
between invasive and in-situ cancer. The final section of this paper is d
evoted to potential future developments to enable clinical and histo-patho
logical applications of this technique. \n\nReferences\n\n[1] Simple x ray
dark- and bright- field imaging using achromatic Laue optics\, M. Ando\,
A. Maksimenko\, H. Sugiyama\, W. Pattanasiriwisawa\, K. Hyodo and C. Uyama
\, Jpn. J. Appl. Phys. 41\, L1016 (2002). \n\n[2] Computed tomographic rec
onstruction based on x-ray refraction contrast\, A. Maksimenko\, M. Ando\,
H. Sugiyama\, T. Yuasa\, Appl. Phys. Lett. 86 124105-1 (2005). \n\n[3] X-
ray refraction-contrast computed tomography images using dark-field imagin
g optics\, N. Sunaguchi\, T. Yuasa\, Q. Huo\, S. Ichihara and M. Ando\, Ap
pl. Phys. Letters 97\,153701-1 (2010).\n\n[4] Iterative reconstruction alg
orithm for analyzer-based phase-contrast CT of hard and soft tissue\, N. S
unaguchi\, T.Yuasa\, M. Ando\, Appl. Phys. Letters 103\, 143702-1 (2013).
\n\n[5] 3-D reconstruction and virtual ductoscopy of high-grade ductal
carcinoma in situ of the breast with casting type calcifications using ref
raction-based x-ray CT\, S. Ichihara\, M. Ando\, A. Maksimenko\, T. Yuasa\
, H. Sugiyama\, E. Hashimoto\, K. Yamasaki\, K. Mori\, Y. Arai and T. Endo
\, Virchows Archiv 451\, 41 (2008).\n\n[6] X-ray phase contrast imaging in
the dark field: implementation and evaluation using excised tissue specim
ens\, M. Ando\, N. Sunaguchi\, Y. Wu\, S. Do\, Y. Sung\, A. Louissaint\, T
. Yuasa\, S. Ichihara\, R. Gupta\, Eur. Rad. 23\, 3021 (2013). \n\n[7] X
-ray Dark-Field Imaging (XDFI): Recent Developments and Clinical Applicati
ons\, M. Ando\, N. Sunaguchi\, D. Shimao\, A. Pan\, T. Yuasa\, K. Mori\, Y
. Suzuki\, G. Jin\, J.-K. Kim\, Jae-Hong Lim\, S.-J. Seo\, S. Ichihara\, N
. Ohura\, R. Gupta\, submitted to Eur. J. Med. Phys.\n\nhttps://indico.inp
.nsk.su/event/3/contributions/1251/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1251/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The nanosecond time resolved X-ray diffractometry with synchrotron
radiation for exploration of fast processes in solids
DTSTART;VALUE=DATE-TIME:20160706T032000Z
DTEND;VALUE=DATE-TIME:20160706T040000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1252@indico.inp.nsk.su
DESCRIPTION:Speakers: Boris Tolochko (Institute of solid state chemistry a
nd mechanochemistry SB RAS)\nThe technique of X-ray diffraction with time
resolution has shown tremendous progress recent years. This is due to the
development of the accelerator technology\, methods of generation of synch
rotron radiation (SR)\, and fast X-ray detectors. The report reviews the m
ain principles of time-resolved X-ray diffractometry and requirements to t
he object\, equipment and detectors. Considered are the basic parameters o
f the diffraction installations at BINP\, SLAC\, and EuXFEL.\nTo obtain th
e best experimental parameters it is necessary to minimize the duration of
the SR flash and the divergence of the primary beam\, as well as increasi
ng its intensity and monochromaticity. Unfortunately\, currently it is imp
ossible to improve all the parameters simultaneously\, so the experimenter
s have to compromise. For example\, they increase the flux of photons at t
he expense of deterioration of the monochromaticity (BINP and APS/ANL) and
carry out experiments in the "pink" spectrum. Or they increase the exposu
re time at the expense of summation of photons from a few bunches. This mo
de was applied to investigation into the dynamics of nucleation and growth
of nanodiamonds in a shock-wave impact on hydrocarbons. Possible options
of development of time-resolved X-ray diffractometry installations at BINP
are considered.\nNow we are preparing an experiment to study the behavior
of the crystal lattice of the material of the fusion reactor first wall i
n a plasma discharge on the diverter. A fast one-coordinate X-ray detector
was developed for this experiment. The detector enables fast recording of
100 diffraction frames with an exposure time of 73 ps and a periodicity o
f 100 ns. Thus\, we can record X-ray "movies" with high time resolution\,
which store information about the dynamics of plasma interaction with the
structure of the crystal surface in a plasma discharge (100 μs in the ITE
R).\nTo solve this problem we are developing an installation to work on be
ams of synchrotron radiation of VEPP4(BINP SB RAS). The installation will
enable obtaining information about what is happening to the crystal lattic
e when the plasma of the ITER reactor interacts with the wall for a short
period of time. The plasma discharge parameters in the ITER are as follows
: an energy of 100 J for 100 μs on an area of 1 mm2. We conducted first s
uccessful test experiments\, having recorded changes in the crystal lattic
e W\, using a laser with a power of 1 J and a pulse width of 100 μm. Now
diffraction patterns with a time resolution of 73 ps can be recorded.\nThe
same method will be used for investigation into the behavior of the cryst
al lattice of space materials under the impact of shock waves and meteorit
es\, flying with speeds of up to 11 km/sec. For this experiment\, a gun la
unching small pellets with such speeds has been designed.\n\nhttps://indic
o.inp.nsk.su/event/3/contributions/1252/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1252/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Experimental realization of X-ray diffraction and small-angle scat
tering using polychromatic synchrotron radiation in the range 20-30 keV
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1253@indico.inp.nsk.su
DESCRIPTION:Speakers: Boris Tolochko (Institute of solid state chemistry a
nd mechanochemistry)\nThe aim of this work is to develop a method to carry
out X-ray analysis using a broad spectral of synchrotron radiation. This
will give an opportunity to increase the number of photons in the primary
beam on the order of 2-3 and thus reduce the exposure time for diffraction
experiment to nanosecond at VEPP-3 and picosecond at VEPP-4.\n\nhttps://i
ndico.inp.nsk.su/event/3/contributions/1253/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1253/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The synchrotron radiation beamline "Plasma" at collider VEPP-4
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1254@indico.inp.nsk.su
DESCRIPTION:Speakers: Boris Tolochko (Institute of solid state chemistry a
nd mechanochemistry)\nNow we are preparing an experiment to study the beha
vior of the crystal lattice of the material of the fusion reactor first wa
ll in a plasma discharge on the diverter. A fast one-coordinate X-ray dete
ctor was developed for this experiment. The detector enables fast recordin
g of 100 diffraction frames with an exposure time of 73 ps and a periodici
ty of 100 ns. Thus\, we can record X-ray "movies" with high time resolutio
n\, which store information about the dynamics of plasma interaction with
the structure of the crystal surface in a plasma discharge (100 μs in the
ITER). To solve this problem we are developing an installation to work on
beams of synchrotron radiation of VEPP4(BINP SB RAS). The installation wi
ll enable obtaining information about what is happening to the crystal lat
tice when the plasma of the ITER reactor interacts with the wall for a sho
rt period of time. The plasma discharge parameters in the ITER are as foll
ows: an energy of 100 J for 100 μs on an area of 1 mm2. We conducted firs
t successful test experiments\, having recorded changes in the crystal lat
tice W\, using a laser with a power of 1 J and a pulse width of 100 μm. N
ow diffraction patterns with a time resolution of 73 ps can be recorded.\n
\nhttps://indico.inp.nsk.su/event/3/contributions/1254/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1254/
END:VEVENT
BEGIN:VEVENT
SUMMARY:SIZE AND SHAPE DEPENDANCY OF CO ADSORPTION ON Pd14 AND Pd55 NANOCL
USTERS: DFT AND FTIR STUDIES
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1255@indico.inp.nsk.su
DESCRIPTION:Speakers: Yury Rusalev (Southern Federal University)\nPalladiu
m is a very effective catalyst for the oxidation of CO. This reaction is v
ery important for reducing automotive and industrial emissions and conside
red to be a good model for fundamental studies of transition metal catalys
ts. It is known that different types of facets as well as size and shape o
f a metal nanoparticle have an effect on catalyst properties. The scope of
our work is to investigate how the reactivity of Pd nanoparticles towards
CO oxidation depends on their size and shape. The keys to the solution ar
e ab-initio DFT calculations in combination with in-situ FTIR spectroscopy
. For theoretical part\, we have chosen the set of Pd clusters of differen
t size and respective shape. After optimization of their geometry\, the ad
sorbed CO molecules were relaxed at the top-on positions of cluster surfac
e. That allowed us to generate IR spectra to be compared with experimental
ones of CO adsorbed on Pd nanoparticles. In order to be closer to the ind
ustrial-type processes\, a special setup allowing in-situ FTIR measurement
s was designed as well. \n In our theoretical studies we used both molec
ular orbital (ADF-2014) and periodic band structure (VASP 5.2) DFT calcula
tion schemes to model small metallic Pd clusters. The basis in calculation
s was chosen as Triple Zeta with one polarization function and frozen core
. We used standard GGA approximation within PBE scheme. Occupations steep
est descend method was used for better geometry convergence. All the param
eters mentioned above with Scalable SCF gave good convergence in all crite
ria. The cutoff energy for periodic plane wave pseudopotential simulation
was set to 400eV. The cell around Palladium clusters was constructed as a
cubic one with 30 nm edge. A single K-point was used in simulation.\nIn th
is work we constructed and optimized geometry of Pd14 and Pd55 clusters wi
th octahedral symmetry. The relaxed interatomic distances (Angstom) of Pal
ladium 55 cluster with CO molecules placed on top hollow sites of Pd obtai
ned by both ADF and VASP DFT calculation schemes are presented in Table 1.
\n\nTable 1. The relaxed interatomic distances (Å) of Pd-55 cluster with
CO\n\n ADF VASP 5.2\n\n Pd-C 2.052 2.042\n C-O 1.
198 1.200\n\nIR spectra for different configurations were obtained dur
ing the calculation. For example main peaks are at 2107 and 503 cm-1.\nBot
h CO adsorption and oxidation on Pd nanoparticles have been studied extens
ively with different experimental techniques [R1]. It is assumed that reac
tion of CO oxidation follows a Langmuir-Hinshelwood mechanism [R2]\, where
both reactants\, CO and O2\, adsorb on the catalyst surface prior to reac
tion between the adsorbed species to form CO2. There were also found some
differences in the kinetics among the (111)\, (110)\, and (100) planes in
studies on single crystals of Pd [R3]. Significant number of experimental
studies of CO adsorption on surface of Pd have been performed by using Dif
fuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS). DRIFTS
is a useful technique for probing catalysts at catalytically relevant temp
eratures and pressures without intense sample preparation [R4]. \nOur expe
rimental setup for in-situ DRIFT studies of CO adsorption on Pd nanopartic
les as main components includes Vertex 70 FTIR spectrometer\, Praying Mant
is Diffuse Reflection Accessory equipped with Low and High Temperature Rea
ction Chambers and a two-channel gas mixing system assembled by using the
Swagelok tube fittings.\n\n\nReferences\n\n[R1] Janos Szanyi\, W. Kevin Ku
hn\, and D. Wayne Goodman J. Phys. Chem. 1994\, 98\, 2978-2981\n[R2] Oh\,
S.H.\; Fisher\, G. B.\; Carpenter\, J. E.\; Goodman\, D. W. J. Catal. 198
6\, 100\, 360\n[R3] Xu\, X.\; Szanyi\,J.\; Goodman\, D. W. Catal. Today\,
1994\,. 21\, 57.\n[R4] Griffiths\, P. R.\; Haseth\, J. A. d. Fourier Trans
form Infrared Spectrometry\, 2nd ed.\; John Wiley & Sons: New York\, 2007.
\n\nhttps://indico.inp.nsk.su/event/3/contributions/1255/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1255/
END:VEVENT
BEGIN:VEVENT
SUMMARY:New X-ray method for monitoring of polymers radiation crosslinking
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1256@indico.inp.nsk.su
DESCRIPTION:Speakers: Boris Tolochko (Institute of solid state chemistry a
nd mechanochemistry)\, Marat Sharafutdinov (ISSCM SB RAS\, BINP SB RAS)\nI
n this work the effect of radiation of relativistic electrons on the cryst
al structure of polyethylene after radiation crosslinking studied. The mai
n attention was paid to changes in the temperature of the Debye. The struc
ture factor equation given earlier yields the diffracted intensities as th
ough all atoms were stationary. As the temperature rises the atoms execute
increased excursions from their average position. Such excursions can inv
olve complex coupled motions of several atoms. However if one restricts co
nsideration to just the independent motions of each atom there is a relati
vely simple trick that can be used which is to (artificially) modify the a
tomic scattering factors\, f\, of each atom to represent the net broadenin
g of their electron clouds resulting from atomic motion. For example a giv
en atom will have its "stationary" f changed to fT according to: fT = f ex
p(−B sin2θ / λ2) where T is the temperature and B = 8π2u2 (units of A
2 )\, u2 being the root mean square displacement of the atom from its aver
age position. The B values are often referred to as B factors (Debye-Walle
r is a another\, similar\, term often used) and increase with temperature
(typical values are 0.2 to 0.8 A2 ). So clearly temperature will modify th
e diffraction intensities by changing the various values of f to fT in the
structure factor equation.\nTo determine the Debye powder X-ray series wa
s filmed at different temperatures of the polyethylene samples irradiated
by relativistic electrons.\nThe method allows to monitor the changes in th
e structure upon irradiation.\n\nhttps://indico.inp.nsk.su/event/3/contrib
utions/1256/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1256/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The formation of silver nanoparticles by synchrotron radiation and
relativistic electrons irradiating of water solution of silver salts
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1257@indico.inp.nsk.su
DESCRIPTION:Speakers: Boris Tolochko (Institute of solid state chemistry a
nd mechanochemistry)\nIt has been found that irradiation of aqueous soluti
ons of silver salts by synchrotron radiation start formation of silver nan
oparticles. Similar processes occur upon irradiation by relativistic elect
rons. In aqueous solution\, the silver particles are agglomerated into lar
ge particles of micron sizes. It was found surfactant\, preventing agglome
ration. The result is a stable colloid solution in which no precipitation
of particles within a few months.\n\nhttps://indico.inp.nsk.su/event/3/con
tributions/1257/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1257/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Cell for X-Ray investigation of new materials for Li-ion batteries
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1258@indico.inp.nsk.su
DESCRIPTION:Speakers: Yury Rusalev (Southern Federal University)\nLi-ion b
atteries are commonly used in our everyday life. However\, we face several
problems with their applications such as aging of the material inside\, n
ecessity of specific charge and discharge cycles\, low capacity and small
temperature range. In order to overcome these difficulties we have to und
erstand what is happening with the material inside the battery. The solut
ion to the problem is constructing a special experimental cell for X-Ray e
xperiments\, which would allow us to measure in-situ battery characteristi
c. \n\n Our experimental setup consists of two parts. First part is elect
ronics\, which allows measuring desired characteristics such as battery ca
pacity\, volt-ampere characteristic by charging and discharging the batter
y repetitively. Control unit of the electronic part is based on AVR micro
controller ATmega 2560 with 10-bit analog to digital converter. It allows
having up to 120 measurements per minute with 2 mV and 1 mA accuracy. Cont
rol of the power circuit is realized via 8-bit external multichannel digit
al to analog converter. In addition\, there is on-board USB-COM Bridge for
communication with specially designed computer software. This software p
rovides control of work regimes. Main functions are charge or discharge of
the battery\, measurement of capacity\, measurement of the level of charg
e\, cycling the battery with specific current in needed range of voltage a
nd charge or discharge to specific capacity.\n\n The second part is a spe
cial cylindrical cell consisting of two parts with thin replaceable conduc
ting and X-Ray transparent windows. One part is made from aluminum for cat
hode material and the other one is made from copper for anode material. Th
ey are separated with PTFE gasket. The design of cell allows to conduct XA
S\, XRD and other types of synchrotron and free electron laser experiments
.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1258/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1258/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The structural study of gold catalytic nanosystems by XAFS method
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1259@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Kriventsov (Boreskov Institute of Catalysis
)\nE.P. Yakimchuk1\, V.V. Kriventsov1\, D. A. Bulushev1\, B.N. Novgorodov1
\, D.P. Ivanov1\, D.G. Aksenov1\, D.A. Zyuzin1\, N.S. Smirnova2\, S.A. Nik
olaev3\, A. Simakov4\, A.V. Chistyakov5\, A.S. Fedotov4\, D.O. Antonov5\,
M.V. Tsodikov5\n\n1) Boreskov Institute of Catalysis SB RAS\, Novosibirsk\
, Russia\n2) Institute of Hydrocarbons Processing SB RAS\, Omsk\, Russia.\
n3) Lomonosov Moscow State University\, Department of Chemistry\, Moscow\,
Russia\n4) Centro de Nanociencias y Nanotecnologia\, UNAM\, Ensenada\, B.
C.\, Mexico\n5) Topchiev Institute of Petrochemical Synthesis\, RAS\, Mosc
ow\, Russia\n\nThe structural study of gold catalytic nanosystems by XAFS
method\nThis work is devoted to a detailed structural study of the nanosiz
ed Au\, Au-Me stabilized forms located on oxide supports by XAFS method. I
t is a well known fact that metallic gold is most inert among the precious
metals due to its electronic structure\, nevertheless the nanosized Au\,
Au-Me forms located on oxide supports may be used as very active catalysts
for numerous industrially important reactions. These systems are very pro
mising for complex organic synthesis\, selective isomerization reactions
and for processes of environmental catalysts\, such as\, CO oxidation and
selective conversion of secondary alcohols. Reliable analysis of the natur
e of gold forms is extremely important for design of new effective gold ba
sed catalysts for different industrial applications. Synthesis of low-perc
entage ~ 0.2-2% Au\, Au-Me samples was carried out under varying preparati
on methods (impregnation\, deposition-precipitation with urea\, direct ion
exchange)\, calcination temperatures and activation methods. All XAFS spe
ctra (Au-L3 edge) of the studied samples were recorded at SSTRC\, Novosibi
rsk. The state of metal components and the local Au structure arrangements
of the prepared catalysts were studied. The Au-O\, Au-Au\, Au-Me interato
mic distances and corresponded coordination numbers were established. All
possible structural models were discussed. It was shown that different sta
bilized gold forms located on oxide supports were formed\, most probably d
epending on a sample prehistory: Au(3+) cations\, having octahedral oxygen
surrounding and metallic Au-Au\, Au-Me nanoparticles ~10-100Å. Some corr
elations between catalytic activities and structural functional properties
of the studied samples were shown. Additionally\, samples of catalysts we
re characterized by the TEM\, EDX\, XRD\, XPS methods. The data obtained b
y all the methods are in a good agreement. \n\nThe work was done using the
infrastructure of the Shared-Use Center “Siberian Synchrotron and Terah
ertz Radiation Center (SSTRC)” based on VEPP-3 of BINP SB RAS. This work
was supported by RFBR (140301066\, 163350248\, 163350249\, 163350250\, 16
0301139)\, SB RAS comprehensive program II.2P (Project 0305-2015-0018).\n\
nhttps://indico.inp.nsk.su/event/3/contributions/1259/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1259/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Status of Siberian Synchrotron and Teraherz Radiation Center. Acti
vity review.
DTSTART;VALUE=DATE-TIME:20160704T051000Z
DTEND;VALUE=DATE-TIME:20160704T055000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1260@indico.inp.nsk.su
DESCRIPTION:Speakers: Konstantin Zolotarev (Budker Institute of Nuclear Ph
ysics)\nThe Siberian Siberian Synchrotron and Terahertz Radiation Center i
s the oldest Russian center for synchrotron radiation applications. The ce
nter combines the research efforts of numerous scientific groups\, mostly
from institutes of the Novosibirsk Scientific Center\, as well as groups f
rom institutes and universities of other Russian cities. The center provid
es research groups with access to most popular synchrotron radiation appli
cations and research techniques. A big part of the activity is devoted to
developing new original approaches for synchrotron radiation usage. \nThe
report covers activity on synchrotron radiation applications at the Siberi
an Synchrotron and Terahertz Radiation Center\, as well as some bright res
ults of recent research.\n\nhttps://indico.inp.nsk.su/event/3/contribution
s/1260/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1260/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Synergistic influence of HF welding on nanostructiral orderliness
of epithelial tissues of gastrointestinal tract
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1261@indico.inp.nsk.su
DESCRIPTION:Speakers: Alvina Vazina (Institute of theoretical and experime
ntal biophysics\, RAS)\nThe results of study of influence of high-frequenc
y electrosurgical welding (HF welding) on molecular and nanostructiral ord
erliness of thin intestine tissues of a pig - mucosa\, submucosa\, muscle
layers\, serosa\, and also the purify mucin preparations from pig’s gast
rointestinal tract are presented. Structural study of biological tissues b
y X-ray diffraction methods with synchrotron radiation usage were carried
out on constructed by us small-angle station «diffraction cinema» DICSI
at the NRC «Kurchatov institute»\, Moscow. \nConsiderable distinctions o
n X-ray patterns of thin intestine tissues are registered before and after
HF welding: the X-ray patterns of native tissue display a small-angle dif
fuse scattering\; diffraction lines practically do not reveal. After appli
cation of HF welding\, the small-angle X-ray patterns of welded sutures in
intestinal tissue are literally filled with sharp diffraction rings: a se
ries of sharp Debye rings with main spacing of 4.65 nm was recorded within
the nanoscale range of 10 to 0.4 nm. We earlier attributed the nanostruct
ural invariant of 4.65(±0.15) nm as periodicity caused by regular attachm
ent of oligosaccharide chains to the protein core of giant proteoglycan mo
lecule of mucus and extracellular matrix of tissues [A. Vazina et al.\, B
ullet. RAS\, 2013\, 77(2)]. \nConsiderable changes in X-ray patterns of ga
strointestinal tissues under synergistic influence of various parametres o
f welding (temperature\, toolkit geometry\, pressure\, modulation of an el
ectromagnetic field\, etc.) can be interpreted by increase in concentratio
n of scattering components due to cold steam formation at acoustic excitat
ion of a site of a tissue between electrodes. \nThus\, under the influence
of welding in tissues it is formed high ordered proteoglycan scaffold pro
viding the functional arrangement of cells during reparation. Proteoglycan
systems can be not only a marker of the physiological status of a tissue\
, but also a regulator providing adequate adaptation of biological systems
to change of external parametres of environment. \nThe research was suppo
rted by RFBR-Moscow region Grant #14-44-03667.\n\nhttps://indico.inp.nsk.s
u/event/3/contributions/1261/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1261/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Structure and properties of ZnSxSe1-x alloy nanostructures embedde
d in anodic alumina membrane
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1262@indico.inp.nsk.su
DESCRIPTION:Speakers: Andrey Chukavin (Physical-Technical Institute of Ura
l Branch of RAS)\nZnSxSe1-x alloys\, as an important member of II–VI ter
nary semiconductors\, have attracted significant interest until now due to
their variable band gap\, spanning from 2.7 eV to 3.67 eV\, which makes t
hem appropriate for developing short wave length LEDs and laser diodes ope
rating entirely in the blue–violet region. Recently\, the ZnSxSe1-x allo
y nanostructures were synthesized by a variety of methods such as chemical
vapor deposition (CVD) and metal organic chemical vapor deposition [2-4].
The electronic structure and band gap of ZnSxSe1-x were also discussed [5
]. The design of ZnS ySe1-y/GaAs (001) heterostructures and their dynamica
l X-ray diffraction were reported [6\,7]. It is worthy to note that the 1D
ZnSxSe1-x-based ZnO/ZnSxSe1-x core/shell nanowire arrays\, ZnO/ZnSxSe1-x/
ZnSe double-shelled heterostructure and ZnS/ZnSxSe1-x nano-heterostructure
s have also been synthesized by chemical vapor deposition method or magnet
ic force assistant growth technique\, which exhibit efficient visible ligh
t absorption\, enhanced photoelectrochemical performance and integrating e
mission property\, respectively [8–10]. However\, the data on the optica
l absorption and photoluminescence spectra yielded different results for t
he ternary compounds produced by different methods\, and understanding of
the physical mechanism leading to this controversy is still not achieved.\
nThe semiconductor nanostructures in dielectric matrixes are of current in
terest due to absorption and luminescent properties improved in comparison
to thin films of materials [11\, 12]. In nanocrystals\, the surface-to-vo
lume ratio is considerably large\, therefore there is a high contribution
of surface in the luminescence properties. The unsaturated bonds on the su
rface create band-gap states that can easily capture the excited electrons
and holes and relax the energy in non-radiative ways [13]. In addition\,
matrix isolation allows to protect nanostructures from external influences
.\nIn this work we for the first time have successfully synthesized alloye
d ZnSxSe1–x nanowires embedded in a anodic alumina membrane via thermal
evaporation of the mixture of ZnS and ZnSe powders. Various compositions c
an be easily obtained by changing the mole ratio of ZnS to ZnSe in a sourc
e material. The X-ray diffraction patterns show that the lattice structure
of these nanostructures is cubic ZnSe-like\, as S atoms replace Se and na
nostructures compositions correlate with their initial S/Se ratio. Chemica
l composition was controlled by XPS method. Optical absorption spectra sho
w that band gaps of the alloy cover the entire range from 2.7 eV to 3.67 e
V by changing the component ratio\, in agreement with literature. The stud
y of the local atomic structure was carried out via EXAFS method. The set
of structural parameters\, namely the interatomic distances and correspond
ed coordination numbers\, were established. All possible structural models
were discussed in detail. Additionally ZnSxSe1–x samples were character
ized by the TEM\, EDX and XPS methods. The data obtained by all the method
s are in a good agreement.\n\n 1. Y. Liang\, H. Xu\, S. Hark\, // Cryst. G
rowth Des. V.10\, P.4206–4210\, 2010\;\n 2. S. Park\, H. Kim\, C. Jin\,
C. Lee. // Curr. Appl. Phys. V.12\, P.499–503\, 2012\;\n 3. J.P. Lu\, H.
W. Liu\, C. Sun\, M.R. Zheng et al. // Nanoscale\, V.4\, P.976–981\, 201
2\;\n 4. G.H.E. Al-Shabeeb\, A.K. Arof\, // Eur. Phys. J. Plus\, V.128\, P
.1–8\, 2013\;\n 5. T. Kujofsa\, A. Antony\, S. Xhurxhi et al. // J. Elec
tron. Mater. V.42\, P.3408–3420\, 2013\;\n 6. P.B. Rago\, E.N. Suarez\,
F.C. Jain\, J.E. Ayers // J. Electron. Mater. V.41\, P.2846–285\, 2012\;
\n 7. Z. Wang\, X. Zhan\, Y. Wang et al // Appl. Phys. Lett. V.101\, P.073
105-5\, 2012\;\n 8. Z. Wang\, H. Yin\, C. Jiang et al. // Appl. Phys. Lett
. V.101\, P.253109-5. 2012\;\n 9. W. Zhou\, R. Liu\, D. Tang\, B. Zou // C
ryst. Eng. Comm. V.15\, P.9988–9994\, 2013\;\n 10. S. Vijayalakshmi\, H.
Grebe\, Z. Iqbal and C.W. White // J. Appl. Phys.\, V.84\, P.6502\, 1998\
;\n 11. P. Persans\, T. Hayes and L. Lurio\, // J. Non Cryst. Solids\, V.3
49\, P.315-318\, 2004\;\n 12. N. Taghavinia and T. Yao // Physica E\, V.21
\, P.96-102\, 2004.\n\nhttps://indico.inp.nsk.su/event/3/contributions/126
2/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1262/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Propagation of beams with orbital angular momentum through 1D and
2D periodic grating (an analogue of the Talbot effect)
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1263@indico.inp.nsk.su
DESCRIPTION:Speakers: Oleg Kameshkov (Novosibirsk State University)\, Yuli
a Choporova (Budker Institute of Nuclear Physics)\nTalbot effect (self-ima
ging of periodic gratings) attracted attention for 170 years that have pas
sed since its discovery. The invention of lasers generating coherent beams
caused a new impetus to these studies. Commissioning of the Novosibirsk f
ree electron laser facility\, which generates powerful coherent monochroma
tic radiation in the terahertz range\, enabled us to demonstrate recently
the Talbot effect in this region of the spectrum. Large wavelength of the
terahertz radiation enables performing experiments with gratings\, fabrica
ted using LIGA technology at synchrotron radiation source VEPP-4\, the str
uctural elements of which are close to the wavelength. In this paper we de
scribe first observation of diffraction patterns in the free space region
behind the periodic structures illuminated with beams carrying orbital ang
ular momenta with topological charges equal to plus-minus 1 or 2. The imag
es observed did not reproduce images of the gratings exactly\, but manifes
ted some periodicity inherent to the Talbot effect with distorted spots re
lated to individual grating openings. The numerical simulation of the elec
tromagnetic field behind the gratings\, carried out in a frame of the Fres
nel-Kirchhoff model\, is compared with the experimental data.\n\nhttps://i
ndico.inp.nsk.su/event/3/contributions/1263/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1263/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Cooling of the superconducting magnet with nitrogen-filled heat pi
pes.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1264@indico.inp.nsk.su
DESCRIPTION:Speakers: Valeriy Tsukanov (BINP)\nThe paper describes usage o
f nitrogen-filled heat pipes for pre-cooling of the superconducting wiggle
r with "dry" cryostat (ANKA/CLIC Superconducting multipole wiggler 2015).\
nIn our design the first stages of cryo-coolers are connected to the magne
t yoke by two heat pipes\, which provide high heat transmission rate (up t
o 100 W per tube) in the temperature range from 300K down to 70K. When the
nitrogen reaches its freezing point\, an automatic thermal contact gap oc
curs. The heat pipes allowed us to exclude usage of liquid nitrogen from t
he process of pre-cooling of the magnet.\n\nhttps://indico.inp.nsk.su/even
t/3/contributions/1264/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1264/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The SR-XRFA usage in biogeochemical studies: element composition o
f larch tissues (Larix cajanderi Mayr.) of Kuranakh Gold Mining area (Rus
sia\, Yakutia)
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1265@indico.inp.nsk.su
DESCRIPTION:Speakers: Svetlana Artamonova (IGM SB RAS)\nThis article is de
voted to the problem of biogeochemical peculiarities of plant of mining go
ld ore deposit zone. The tissues of larch (Larix cajanderi Mayr.) were the
object of our studies using of X-ray fluorescence elemental analysis with
synchrotron radiation (SR-XRF) method. Large possibilities of SR-XRFA\, a
long with the simple preparation of biological samples\, allowed us to car
ry out valuable biogeochemical investigations in Kuranakh Gold Mining area
(Russia\, Yakutia). New data on the accumulation of biophilic microelemen
ts Cu\, Zn\, Mo\, chalcophilous Ni\, Pb\, Ag\, As\, Sb\, rare lithophilous
Rb\, Sr\, Zr\, Y\, Nb\, scattered chalcophilous Ga\, Ge\, Se\, Cd\, Te\,
Tl in the tissues of larch (Larix cajanderi Mayr.) of gold ore deposit are
as and of gold wastes tailings were obtained. \nThe changes of elemental c
omposition of plant under technogenic impact in area of tailings and in ar
eas of natural geochemical anomalies of ore deposits is very significant t
o assessment ecological risk of technogenic impact in mining areas.\n\nhtt
ps://indico.inp.nsk.su/event/3/contributions/1265/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1265/
END:VEVENT
BEGIN:VEVENT
SUMMARY:An inverse method of structured X-ray screen manufacturing
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1266@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Nazmov (Budker Institute of Nuclear Physics
)\nIt is shown that the spatial resolution of an X-ray screen can be incre
ased by forming structures like channels which are filled with a phosphor
[V.I.Kondratiev\, M.V.Kuzin\, N.A.Mezentsev\, L.A.Mezentseva\, V.P.Nazmov\
, Yu.T.Pavlyukhin\, A.Krasnoperova\, V.F.Pindyurin\, A.A.Sidelnikov\, B.P.
Tolochko\, Preliminary testing of microstructured imaging plates with impr
oved spatial resolution. Nucl.Instr.Meth.Phys.Res.A448 (2000) 207-210]. It
is established that the diameter of the channel is smaller\, the higher s
patial resolution can be achieved. However\, the problem of filling of nar
row channels is increasing. In the proposed method\, the phosphor has been
mixed with the structured material SU-8 - resist and the patterning is ca
rried out. Thus\, the need of filling of channels with a phosphor disappea
rs. Due to the high penetration depth of hard X-rays into the materials du
ring the patterning step\, regardless havy elements inside Gd2OS2 as a pho
sphor\, the height of patterned microstructures can achieve tens or hundre
ds of micrometers. The optical isolation of the patterned phosphor pillars
is carried out by electroplating of nickel betweeen the pillars. The achi
eved spatial resolution and the details of the manufacturing process heve
been discussed.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1266/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1266/
END:VEVENT
BEGIN:VEVENT
SUMMARY:МETHOD FOR MANUFACTURING SELF-BEARING MICROSTRUCTURES OF THE PSEU
DO-METALLIC TYPE
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1267@indico.inp.nsk.su
DESCRIPTION:Speakers: Aleksandr Gentselev (Budker INP\, Novosibirsk\, Russ
ia)\nWe consider the peculiar features of the LIGA-technology methods elab
orated in the Siberian Synchrotron and Terahertz Radiation Centre (SSTRC\,
BINP SB RAS) and applied to producing quasi-optical subterahertz filters
and focusing elements based on high-aspect self-bearing microstructures of
the pseudo-metallic type. The essence of the method consists in deep X-ra
y lithographic patterning of an organic glass (PMMA) substrate followed by
covering its entire surface with a thin layer of metal (Ag or Al). The re
sults of manufacturing the inductive microstructures with geometry of hone
ycomb arrays\, including high-pass filters with the cut-off frequency of 0
.28 THz and focusing elements operating at 0.65 THz\, are presented. The d
etails of spectral characterization of the developed structures using a BW
O-spectroscopy technique are discussed. Good agreement between the results
of measurements and numerical simulations is demonstrated.\n\nhttps://ind
ico.inp.nsk.su/event/3/contributions/1267/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1267/
END:VEVENT
BEGIN:VEVENT
SUMMARY:NEXAFS study of molecular arrangement in polyaniline films prepare
d by electrochemical deposition
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1268@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexander Syugaev (Physical-Technical Institute UB R
AS\, Izhevsk\, Russia)\nNanoscale films based on conductive polymers and p
olyaniline/polypyrrole multilayers are of great interest and may be used i
n various applications such as protective and antielectrostatic coatings\,
membranes\, sensors\, capacitors\, etc. Physical-chemical properties of p
olyaniline films depend on their molecular arrangement. Up to date\, the e
ffect of the electrochemical synthesis conditions on the chemical structur
e and molecular orientation in the films is far from being comprehensively
studied. In the work\, the polarization-dependent NEXAFS spectra were use
d to obtain the data on the molecular arrangement in a relatively thick (~
1 micron and thicker) polyaniline films. The influence of different parame
ters of electrosynthesis was investigated such as polarization potentials\
; polarization modes (potentiostatic\, cyclic)\; growth from still/stirrin
g electrolyte solution. XPS and NEXAFS spectra were measured at the dipole
Russian-German beamline at the BESSY II\, HZB Berlin.\n\nIn most films\,
the polarization-dependent NEXAFS spectra have shown a preferential orient
ation of the macromolecular chains of polyaniline in the surface layer of
the films. The films are arranged differently depending on the preparation
conditions. For example\, at the initial stages of the deposition under p
otentiostatic conditions in stirring electrolyte\, most of the aromatic ri
ngs of the polymer molecules are arranged along with the film surface. Wit
h increasing deposition time\, a preferential molecular orientation disapp
ears. For the film prepared under the same conditions\, but in still elect
rolyte\, there is significant polarization effect\, indicating that the ar
omatic rings are arranged perpendicular to the sample surface. However\, t
he polymer chains themselves are oriented along with the sample surface. S
uch an orientation of the molecules can be assigned to the capture of macr
omolecular fragments and oligomers from the near-electrode layer\, in whic
h these fragments are accumulated.\n\nThe work was supported by the Russia
n Foundation for Basic Research (grant № 16-43-180228) and the Russian-G
erman Laboratory at BESSY II\, HZB Berlin.\n\nhttps://indico.inp.nsk.su/ev
ent/3/contributions/1268/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1268/
END:VEVENT
BEGIN:VEVENT
SUMMARY:MANUFACTURING LIGA-MASKS WITH LASER MICROMACHINING
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1269@indico.inp.nsk.su
DESCRIPTION:Speakers: Aleksandr Gentselev (Budker INP\, Novosibirsk\, Russ
ia)\nIn the LIGA-technology\, the first stage in forming a micro-relief is
the deep X-ray lithography which is implemented\, as a rule\, by using sy
nchrotron radiation (SR) of the wavelength spectral range λ ≈ 1÷3 Ǻ.
Realization of this technology implies availability of a high-contrast X-r
ay mask (LIGA-mask) containing X-ray opaque topological drawing which is n
ormally formed via galvanic deposition of heavy metals on the surface of a
X-ray transparent bearing membrane. It is worth noting that a number of p
roducts made with the LIGA-technology\, e.g. quasi-optical terahertz filte
rs and focusing elements are characterized by self-bearing topology. It op
ens up a possibility of the structure’s production by means of the alter
native but significantly simpler technology – laser cutting of a metal f
oil that allows eliminating the bearing membrane and excludes technologica
l problems related with electroplating. \nIn this work\, we describe the r
esults of experiments with two different laser systems based on solid-stat
e pulsed lasers (λ1 ≈ 1064 nm\, λ2 ≈ 532 nm\, pulse duration ~ 10 ns
) which were utilized for producing LIGA-masks via patterning brass and le
ad foils 50 um thick. The best results from the viewpoint of the cut edge
roughness were obtained with a brass foil patterned with the 1064-nm-laser
which provided the average roughness size ~ ±2÷3 um. The technological
constraints imposed by the proposed laser technique on the structural geom
etrical parameters of LIGA-masks\, as well as the ways for their mitigatio
n are discussed.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1269/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1269/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Hybrid magnet wiggler for SR research program at VEPP-4M
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1270@indico.inp.nsk.su
DESCRIPTION:Speakers: Grigory Baranov (Budker Institute of Nuclear Physics
)\nA compact hybrid magnet wiggler is under development for the VEPP-4 SR
research program. The wiggler allows to increase the photon flux by two or
ders at the beam energy 4.5 GeV in the spectrum range of 60-100 keV. The m
agnet consist of conventional coils which generate magnetic field and perm
anent magnet insertions which concentrate the flux. The solution increases
field at the beam orbit up to 2.05 T. Here we present design\, magnetic c
alculations and analysis of the beam dynamics under hybrid wiggler influen
ce.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1270/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1270/
END:VEVENT
BEGIN:VEVENT
SUMMARY:EXAFS\, XANES and XRD investigations of doped ZnS nanostructures
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1271@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Kriventsov (Boreskov Institute of Catalysis
)\nR.G. Valeev1\, A.N. Beltiukov1\, A.I. Chukavin1\, A.L. Trigub1\,2\, V.V
. Kriventsov3\, N.A. Mezentsev4\n\n1) Physical-Technical Institute of UB R
AS\, Izhevsk\, Russia\n2) NSC “Kurchatov’s Institute”\, Moscow\, Rus
sia\n3) Boreskov Institute of Catalysis of SB RAS\, Novosibirsk\, Russia\n
4) Budker Institute of Nuclear Physics of SB RAS\, Novosibirsk\, Russia\n
\nIn the current state of materials science the considerable attention has
devoted to the study of new materials for light emitting devices. Light e
mitting electroluminescent panels based on powders and thin films have fou
nd wide application in electroluminescent devices\, character displays\, b
acklight panels of advertising constructions. One major drawback of such d
evices is using high frequency and high voltage AC power sources. Traditio
nal materials for electroluminescent light sources are powders and films o
f zinc sulfide doped with copper\, chlorine\, manganese and other elements
. It was established that a wavelength and intensity of light depends on t
he concentration and type of dopands\, i.e. there are circumstances under
which it is possible to provide a source of white light emission. But alon
g with the advantages of electroluminescent light sources\, there are sign
ificant disadvantages: high energy consumption\, the need for specific pow
er supplies and short operation time. This is due to degradation of the ac
tive layer under specific principles of operation of such devices in extre
mely high electric fields (before breakdown luminescence). \nIn this work
we use templating approaches based on the formation of doped ZnS particles
in the porous alumina membranes with highly ordered channels with control
led diameter. It is necessary to identify the influence of synthesis condi
tions on the structure and electrical properies\, (including light emittin
g)\, properties of materials. All this defines the scope of application of
SR methods. EXAFS\, XANES and XRD\, as powerful probe instruments in inv
estigations of doped ZnS nanostructures for the creation of a new class of
fluorescent materials to form the basis of their layers for high-performa
nce and high-brightness light-emitting electroluminescent panels. \nSome c
hanges of the phase compositions and local structure arrangements of the s
tudied ZnS doped samples (different compositions and preparation ways) wer
e characterized in detail. The interatomic distances and corresponded coor
dination numbers were revealed. All possible structural models were discus
sed. Some correlations between their properties\, local structure distorti
ons and state of doped components were established.\nThis work is supporte
d by Russian Scientific Foundation (Project № 15-19-10002)\, SB RAS comp
rehensive program II.2P (Project 0305-2015-0018).\n\nhttps://indico.inp.ns
k.su/event/3/contributions/1271/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1271/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Structural investigations of Ni deposited on porous anodic alumina
matrices
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1272@indico.inp.nsk.su
DESCRIPTION:Speakers: Andrey Chukavin (Physical-Technical Institute of UB
RAS)\, Vladimir Kriventsov (Boreskov Institute of Catalysis)\nR.G. Valeev1
\, V.V. Stashkova2\, A.I. Chukavin1\, V.V. Kriventsov3\, N.A. Mezentsev4\n
\n1) Physical-Technical Institute of UB RAS\, Izhevsk\, Russia\n2) Udmurti
a State University\, Izhevsk\, Russia\n3) Boreskov’s Institute of Cataly
sis of SB RAS\, Novosibirsk\, Russia\n4) Budker Institute of Nuclear Physi
cs of SB RAS\, Novosibirsk\, Russia\n\nIron\, nickel\, cobalt\, platinum
and other 3d and platinum group metals\, their alloys and intermetallic c
ompounds are traditionally used as cathodes in electrolytic hydrogen evolu
tion reaction (HER) in aqueous acid and alkaline solutions [1]. Nickel sta
nds out among them because of the fact that\, having high corrosion resist
ance in acidic and alkaline media compared with platinum group metals\, it
has a low cost and so is widely used [2\,3]. It should be noted that the
efficiency of HER depends on the area of contact of the cathode material w
ith the electrolyte\, so there is an increased interest in literature to t
he nickel based materials having a developed surface due to the formation
of metal nanoparticles with different morphology [4]. This is due to the l
arge contribution of surface electronic states of the metal in HER. It is
also strongly affected by the structural-phase state and local atomic and
electronic structure causing nickel chemical activity.\nThe aim of this wo
rk is to develop methods of magnetron sputtering nickel on high surface ar
ea membranes of a porous anodic alumina morphology and to study the struct
ural-phase state\, local atomic and electronic structures of the samples\,
depending on the parameters of the Al2O3 porous structure (the pore diame
ter\, the distance between the individual pores). \nAs a result of a compl
ex study (XAFS\, XRD\, SEM)\, the state and local structure of samples obt
ained by few ways were revealed. The geometrical characteristics of Ni nan
ostructures\, their crystalline and local atomic structure were studied. T
he local atomic structure parameters were compared to those revelaed in in
vestigations of the nickel film obtained on smooth Al2O3 surface. All poss
ible structural models were discussed in detail. \nThis work is supported
by program “Umnik” (Grant № 0020390)\, SB RAS comprehensive program
II.2P (Project 0305-2015-0018).\n\n1. L.A. Kibler\, ChemPhysChem 7\, 985 (
2006).\n2. W.A. Badawy\, H. Nady\, et al.\, Int. J. Hydr. Energy 39\, 1082
4 (2014)\n3. J. Panek\, A. Budniok\, Surf. Interface Anal. 40\, 237 (2008)
.\n4. D.A. Dalla Corte\, C. Torres\, et al.\, Int. J. Hydr. Energy 37\, 30
25 (2012).\n\nhttps://indico.inp.nsk.su/event/3/contributions/1272/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1272/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Analytical study of terahertz spoof surface plasmons on corrugated
metal-dielectric structures
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1273@indico.inp.nsk.su
DESCRIPTION:Speakers: Vasily Gerasimov (Budker Institute of Nuclear Physic
s SB RAS)\, Vladislava Bulgakova (Budker Institute of Nuclear Physics SB R
AS)\nResults of analytical and numerical analysis of characteristics of sp
oof surface plasmons on corrugated metal-dielectric structures in terahert
z region will be presented\n\nhttps://indico.inp.nsk.su/event/3/contributi
ons/1273/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1273/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Beam parameter measurements and demonstration of UED at the KAERI
ultrashort pulse facility
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1274@indico.inp.nsk.su
DESCRIPTION:Speakers: Hyun Woo Kim (UST\, KAERI)\nWe developed an ultrasho
rt pulse facility for pump-probe experiments at the Korea Atomic Research
Institute (KAERI). This facility composed two ultrafast electron diffracti
on (UED) experiments for gas target and solid target.We measured beam para
meters and demonstrated UED. We will present on results of beam parameter
measurements and UED experiments.\n\nhttps://indico.inp.nsk.su/event/3/con
tributions/1274/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1274/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Interaction of monochromatic terahertz surface plasmons with plane
mirrors
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1275@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexey Nikitin (Scientific and Technological Center
for Unique Instrumentation of RAS)\, Vasily Gerasimov (Budker Institute of
Nuclear Physics SB RAS)\nExperimental results of study of reflection and
diffraction of surface plasmons generated using monochromatic terahertz ra
diation of Novosibirsk free-electron laser will be presented\n\nhttps://in
dico.inp.nsk.su/event/3/contributions/1275/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1275/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Terahertz surface plasmons on real metal-dielectric structures: co
mparison of theory and experiments
DTSTART;VALUE=DATE-TIME:20160706T072000Z
DTEND;VALUE=DATE-TIME:20160706T074000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1276@indico.inp.nsk.su
DESCRIPTION:Speakers: Vasily Gerasimov (Budker Institute of Nuclear Physic
s SB RAS)\nTerahertz surface plasmons propagated along real metal-dielectr
ic structures\, as well as their propagation through the macroscopic air g
apes between two conducting surfaces\, have been studied. The experimental
results obtained using terahertz radiation of Novosibirsk free-electron l
aser and comparison with theory will be presented\n\nhttps://indico.inp.ns
k.su/event/3/contributions/1276/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1276/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Methods of angular scanning in imaging and topography
DTSTART;VALUE=DATE-TIME:20160706T100000Z
DTEND;VALUE=DATE-TIME:20160706T102000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1278@indico.inp.nsk.su
DESCRIPTION:Speakers: Konstantin Podurets (NRC "Kurchatov Institute")\nIn
an imaging experiment using the topography or phase contrast techniques\,
generally\, the result is a single image\, which represents the internal s
tructure of the object. However\, identification of the features of the ob
served structure is a challenge. In these methods\, an important parameter
is the scattering angle\, and methods of using its variation are being ac
tively developed [1\,2]\, making possible to obtain a scattering curve for
each local region of a sample. The report discusses the results of applyi
ng the methods of the angular scanning experiments in the synchrotron topo
graphy and analyzer based imaging. The curved silicon single crystals are
currently used at the big accelerators (LHC etc) as deflectors for the ext
raction and collimation of the proton beams. Using the method of topograph
y with angular scanning at synchrotron radiation such a deflector was stud
ied\, the curvature of its elements was measured and its performance at th
e passage of the proton beam was understood. A wide range of objects was s
tudied with the help of analyzer based imaging with angular scanning. Seve
ral samples of opals of natural and artificial origin were investigated. I
mages of all the samples were obtained in a wide angular range from the pe
ak of crystal reflection to the distant tail at about 102 of FWHM. The maj
ority of the samples displayed the inhomogeneous structure with regions th
at changed their brightness\, relative to adjacent regions\, during the ro
tation of the analyzer crystal. Another kind of a sample was an ancient pa
rchment\, where the features of its structure on tens micrometers scale ca
n provide a valuable information of the parchment manufacturing technology
.\n\n1. A. A. Kaloyan\, E. S. Kovalenko\, and K. M. Podurets\, Journal of
Surface Investigation. X-ray\, Synchrotron and Neutron Techniques\, 2014\,
Vol. 8\, No. 3\, pp. 429–432.\n2. Lübbert D.\, Baumbach T.\, Härtwig
J.\, Boller E.\, Pernot E. Nucl. Instrum. Meth. 2000 B160 521\n\nhttps://i
ndico.inp.nsk.su/event/3/contributions/1278/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1278/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Zero-area THz optical pulses in gases.
DTSTART;VALUE=DATE-TIME:20160706T080000Z
DTEND;VALUE=DATE-TIME:20160706T082000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1279@indico.inp.nsk.su
DESCRIPTION:Speakers: Evgeniy Chesnokov (Istitute of Chemical Kinetics)\nT
ransformation of the short optical pulses in a medium with a high optical
density is described. In such conditions an intense free-induction signal
it formed\, which has a specific type of the oscillations. These oscillati
ons were observed experimentally in rotation spectra of HCN and HBr molecu
les using a terahertz free electron laser as a source of optical pulses an
d ultra-fast Schottky diode as detector.\n\nhttps://indico.inp.nsk.su/even
t/3/contributions/1279/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1279/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Raman scattering at terahertz frequencies enabled by an infrared f
ree electron laser
DTSTART;VALUE=DATE-TIME:20160706T074000Z
DTEND;VALUE=DATE-TIME:20160706T080000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1280@indico.inp.nsk.su
DESCRIPTION:Speakers: Sergey Pavlov (German Aerospace Center)\nIn the last
decade the use of infrared free electron laser facilities enabled observa
tion of inelastic light (Raman) scattering in THz frequency range. Raman-a
ctive intracenter donor transitions in silicon fall into the THz range and
serve as outgoing resonances in electronic Stokes scattering. At photon f
luxes above 1E24 photon/cm2/s donor-related Raman stimulated emission occu
rs in the range 4.2-6.5 THz from natural and isotopically enriched silicon
crystals with various dopants while the free electron laser wavelength wa
s varied between 18 and 41 µm (7.5-16.5 THz). Study of dynamics of the ob
served emission shows a transient picosecond-micropulse mode that indicate
s on significantly larger Raman gain realized in THz Raman silicon lasers.
\nThis research has been partly supported by the EC CALIPSO project for th
e Transnational access to the European FELs and Synchrotron facilities as
well as joint German-Russian program “Research on technological advances
of radiation sources of photons and neutrons based on accelerators and ne
utron sources in cooperation with research organizations and universities
of the Federal Republic of Germany” (InTerFEL project\, BMBF No. 05K2014
and the Russian Ministry of Science and Education (No. RFMEFl61614X0008).
\n\nhttps://indico.inp.nsk.su/event/3/contributions/1280/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1280/
END:VEVENT
BEGIN:VEVENT
SUMMARY:XANES investigation of the chromium dichalcogenides CuCr1-x
M’S2 and MCrX2
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1281@indico.inp.nsk.su
DESCRIPTION:Speakers: Evgeniy Korotaev (Nikolaev Institute of Inorganic Ch
emistry of the Siberian Branch of the Russian Academy of Sciences)\nThe c
hromium dichalcogenides MCrX2 (M = Cu\, Ag\, Na\, X = O\, S\, Se) are prom
ising materials for modern electronics. These materials have the potentia
l properties for practical usage : ionic conductivity [1]\, thermoelectric
properties [2]\, magnetic arrangement[3-4]\, colossal magnetoresistance\,
phase metal-insulator transition [4].\nThere are several different ways o
f purposeful control of electric and magnetic properties of the chromium d
ichalcogenides MCrX2: cationic substitution of the chromium atoms with van
adium\, iron or manganese atoms (CuCr1-xM'xS2\, M' = V\, Fe\, Mn)\, co-int
ercalation of different kinds of atoms into the van-der-waals gap (for exa
mple silver in the Cu1-xAgxCrS2)\, changing type of the chalcogen (CuCrX2\
, X = S\, Se\, Te).\nSynthesis of functional materials based on MCrX2 with
necessary properties requires distribution control of atoms on the crysta
llographic positions in the crystal lattice. This parameter essentially de
pends on technology of synthesis. In this regard\, it is appropriate to us
e physical methods sensitive to the character of the local environment of
atoms in synthesized samples. The XANES-spectroscopy can be used as such m
ethod (XANES - X-ray Near Edge Structure).\nIn the present study a complex
experimental and theoretical investigation of the XANES-structures of X-r
ay absorption K-edges of intercalated MCrX2 (M = Cu\, Ag\, X = O\, S\, Se)
and cation-substituted dichalcogenides CuCr1-xM'xS2\, (M' = V\, Fe\, x =
0-0.40) have been carried out. Based on these data the influence of cation
substitution of chromium atoms and the influence of types of the chalcoge
ns and the intercalates to the near fine structure of X-ray absorption spe
ctra of the elements in the dichalcogenides CuCr1-xVxS2 and MCrX2 (M = Cu\
, Ag\, X = O\, S\, Se) have been investigated.\nThe reported investigation
was funded by RFBR according to the research\n project No. 16-32-00612.\n
[1] Almukhametov R.F.\, Yakshibaev R.A.\, Gabitov E.V. et al. // Phys. Sta
t. Sol. (b). – 2003. – 236\, N 1. – P. 29 – 33.\n [2] Srivastana D
.\, Tewari G.C.\, Kappinen M.\, Nieminen R.M. // J. Phys.: Condens.Matter.
– 2013. – 25\, N. 3 – P. 105504.\n[3] Karmakar A.\, Dey K.\, Chatt
erjee S. et al. // Appl. Phys. Letters. – 2014. –104\, N. 5. – P. 05
2906.\n[4] Abramova G.M.\, Petrakovskii G.A. // Low Temperature Physics.
– 2006. – 32\, N. 8/9. – p. 954-967.\n\nhttps://indico.inp.nsk.su/ev
ent/3/contributions/1281/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1281/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Experimental modeling of the impulse diffraction system with a "wh
ite" SR beam.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1282@indico.inp.nsk.su
DESCRIPTION:Speakers: Mihail Fedotov (BINP)\nSome matrix detectors (CCD an
d CIS) have direct X-ray sensitivity and can operate as dispersionless spe
ctrometers with a very large number of elements (10E6 and more). In the ca
se of the impulse diffraction such detector can simultaneously record a si
gnificant number of independent events. In the reading the position and en
ergy of the absorbed X-ray photon may be restored for each event. The math
ematical processing of the received data with respect to the Bragg conditi
on can theoretically lead to the coordinates of the events of one fixed en
ergy and to form an analogue of powder diffraction patterns. In this case
the registration can be performed on the "white" SR beam for a short time
(up to 1 ns or less). \n \nThe possibility of using of the 2000-elemen
t linear CCD ILX511 (Sony) as X-ray dispersionless spectrometer allowed to
conduct simulation experiments to obtain diffraction patterns of graphite
\, boron nitride and TNT-hexogen solid detonation products. SR beam was mo
dulated by a mechanical chopper and statistics were provided by a multiple
recording with on-line processing.\n\nhttps://indico.inp.nsk.su/event/3/c
ontributions/1282/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1282/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The system for monitoring of the fast vertical oscillations of VEP
P-3 SR beam
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1283@indico.inp.nsk.su
DESCRIPTION:Speakers: Mihail Fedotov (BINP\, NSU)\nDue to the presence of
a ripple on the output of various power sources\, and mechanical vibration
s the VEPP-3 wiggler beam is subject to certain perturbations (oscillation
s). Such disturbances can distort the results of precise experiments. At t
he same time the existing stabilization system of the SR beam works with a
large averaging times and almost not sensitive to these disturbances. \n\
nThe differential high-speed detector based on pin-photodiodes and electro
nic processing circuits (that provide filtering and correlated double samp
ling of the signals) was developed for observation of the SR beam vertical
oscillations. Detector is supplemented by electromechanical system for au
tomatically adjustment of the sensor in beam center and allows to record s
low displacement with a resolution of up to 0.2 microns.\n\nThe measuremen
ts showed the presence of perturbations on the harmonics (50\, 100\, and 3
00 Hz) and subharmonic (25 Hz) of power supply. In addition\, the frequenc
ies of 20 or 21.5 kHz were observed too\, that is possibly related to the
sources of the inverter type.\n\nIt is expected that in the future this sy
stem can be connected to fast correctors of VEPP-3 storage ring for feedba
ck suppression of the beam oscillations.\n\nhttps://indico.inp.nsk.su/even
t/3/contributions/1283/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1283/
END:VEVENT
BEGIN:VEVENT
SUMMARY:SR micro-XRF installation on VEPP-3 storage ring. Possibilities in
increasing the spatial resolution.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1284@indico.inp.nsk.su
DESCRIPTION:Speakers: Dmitry Sorokoletov (Budker Institute of Nuclear Phys
ics SB RAS)\nTo investigate the possibility of increasing the spatial reso
lution of the installation "SR micro-XRF" [1]\, we conducted earlier an ex
periment on the elemental mapping of one-dimensional test sample (a fragme
nt of an RF bipolar transistor chip\, containing a number of gold stripes)
\, as well as processing of some of the experimental results (one mapping
line) [2-3] using the classical Tikhonov regularization algorithm [4\, p.
73]. In this work we present the results of the processing of all data of
this experiment (by two variational realizations [4\, p. 119] of the Tikho
nov algorithm) and a detailed analysis of the results. For example\, we pe
rformed a numerical simulation of the direct and inverse deconvolution pro
blems. We did that for cases with different resolutions\, to study the pla
usibility of the results of solving the deconvolution problem. We also ana
lyzed the influence of certain effects that cause systematic errors in the
calculations and the resulting solution.\n\nAs a result of this work\, we
found out that it was very difficult to practically increase the spatial
resolution 3 times (which corresponds to the distance between the gold str
ipes of the sample and their width of 5 μm at an FWHM of the lens instrum
ental function of 15 μm)\, while it was theoretically possible\, on the "
SR micro-XRF" installation with the available intensities of fluorescent s
ignals and noise levels. A quantitative analysis of the reasons for this i
s discussed in this work and illustrated in detail in a number of model ca
ses. At the same time\, in certain experimental mapping regimes\, the achi
evable resolution can be increased 1.5-2 times (provided there are no sign
ificant systematic errors in the calculations).\n\nThe results of the rese
arch will help to plan subsequent mapping experiments (they showed that th
e data of the mapping conducted earlier were ill-suited to processing beca
use of non-optimal experimental regime\, which led to a substantial system
atic error with the desired 3-fold resolution increase\, because of the ed
ge effects and not too good signal-to-noise ratio).\n\nThis work was suppo
rted by the RFBR Grants № 14-02-00631\, 16-32-00705. The work by D.S. So
rokoletov was supported by a scholarship of the President of the Russian F
ederation (SP-2761.2016.2).\n\nReferences\n\n[1] http://ssrc.inp.nsk.su/CK
P/stations/passport/3/\n\n[2] Sorokoletov D.S.\, Rakshun Ya.V. "Some aspec
ts of quantitative micro-XRF based on the use of polycapillary lenses" //
Book of Abstracts. The International Joint School «Smart Nanomaterials an
d X-Ray Optics 2015: Modeling\, Synthesis and diagnostics» for young rese
archers. Rostov-on-Don\, 26-30\, September\, 2015. (ISBN 978-5-98615-164-9
)\n\n[3] Sorokoletov D.S.\, Rakshun Ya.V. "An Tikhonov regularizing method
in micro-XRF inverse problem on example of the studying of a test sample
- a fragment of an RF bipolar transistor chip (in Russian)" // Book of Ab
stracts. The Young Scientist School «Applications of synchrotron and\nter
ahertz radiation for studies of high energy materials». Biysk\, 15-20\, S
eptember\, 2015.\n\n[4] Leonov A.S. Solving ill-posed inverse problems: es
say on the theory\, practical algorithms\, and demonstrations in Matlab (i
n Russian). Second edition. Moscow\, "Publishing House "Lybrokom"". 2013.
336 p.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1284/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1284/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Influence of a LIGA-raster on the spatial distribution of the radi
ation from a flash X-ray generator
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1285@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Nazmov (Budker Institute of Nuclear Physics
)\nThe development of essentially new methods of manufacturing of X-ray op
tics in the energy range 20-200 keV is a challenge. Namely\, the developme
nt of manufacturing methods of X-ray rasters with high aspect ratio and\,
on substrates of any forms\, using LIGA technique. \nA spherical X-ray wav
e can be formed\, placing a foil with microchannels onto a spherical surfa
ce either near the X-ray focus or away from the focus. In case of a plane
raster\, the quasi-plane wave with a divergence determined by the ratio of
the diameter to the lengths of channels will be formed. At the same time\
, for X-ray tubes of all the types\, including flash generators applied at
the Institute of Hydrodynamics SB RAS for the diagnostic of high-speed an
d explosive processes\, a three-dimensional microraster can be used as a c
ollimator. That allows a decreasing of the visible source size\, resulting
in an increasing of the spatial coherence of the X-ray beam. \nIn the exp
eriment\, a flat nickel raster of 1250 microns thick\, whose channels are
80 microns in diameter\, and manufactured using LIGA technique\, has been
applied. For a flash X-ray device with an explosive electron emission and
a bias of 150 kV\, the angular divergence was reduced from 180 degrees to
3 degrees (FWHM)\, i.e. 60 times. The quasi-parallel X-ray beam along the
axis passing from the center of the focus and perpendicular to the raster
was formed. The beam diameter is similar to the focus size in the near fie
ld and divergent (with an angular divergence of 3 degrees) in the far fiel
d.\nBecause of non-zero raster transparency\, a background of scattered ra
diation has been observed. The intensity of the background is characterize
d by the sixth order of symmetry that corresponds to the raster symmetry.
\nThus\, the opportunity of the use of microraster manufactured by means o
f LIGA for the increase of spatial coherence of X-rays is experimentally d
emonstrated.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1285/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1285/
END:VEVENT
BEGIN:VEVENT
SUMMARY:FEL-based study of intervalley elastic scattering of donor excited
states in multivalley semiconductors
DTSTART;VALUE=DATE-TIME:20160706T042000Z
DTEND;VALUE=DATE-TIME:20160706T050000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1286@indico.inp.nsk.su
DESCRIPTION:Speakers: Valery Shastin (IPM RAS)\nFEL-based optical pump-pro
be technique is usually applied for study of highly non-equilibrium electr
ons in semiconductors and in particularly for the relaxation of donor or a
cceptor bound excited states. Here we are focused on intervalley elastic s
cattering that is typical for donors in silicon crystal. As shown such pro
cess results in an additional feature in a pump-probe response that has be
en ignored so far in the interpretation of data obtained using FELIX and
FELBE free electron lasers. On the other hand the knowledge on the elastic
intervalley scattering is also important from physical point of view.\n\n
https://indico.inp.nsk.su/event/3/contributions/1286/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1286/
END:VEVENT
BEGIN:VEVENT
SUMMARY:IN-SITU INVESTIGATION OF THERMO-STIMULATED DISSOLUTION OF HYDRIDES
IN TITANIUM AND ZIRCONIUM BY MEANS OF SHORT-WAVE DIFFRACTION OF SYNCHROTR
ON RADIATION
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1287@indico.inp.nsk.su
DESCRIPTION:Speakers: Roman Laptev (National Research Tomsk Polytechnic Un
iversity)\nTitanium and zirconium alloys are widely used in medicine\, che
mical and oil industries\, aircraft industry\, in nuclear power industry.
Hydrogen penetration and accumulation in titanium and zirconium products l
ead to its properties and can lead to the delayed fracture due to the hydr
ogen embrittlement [1-4].\n\n Degree of hydrogen impact on the titanium an
d zirconium properties depends on its concentration and condition in metal
. Hydrogen saluted in lattice has a low impact on properties of the metal.
However\, hydrogenation under operation of titanium and zirconium alloys
often occurs with hydrides formation. As a consequence\, investigation of
hydrides formation and dissociation in titanium and zirconium has both fun
damental and practical interest.\n\nSamples of commercially pure titanium
alloy and Zr1%Nb zirconium alloy were instigated in this work. Hydrogenati
on was done by gas-phase method at temperature 600 °C and hydrogen pressu
re 1 atm. Spectrum of hydrogen thermo-stimulated desorption from samples a
fter hydrogenation were obtained with the help of automated complex Gas Re
action Controller LPB with mass-spectrometer RGA100. \n\nIn situ diffracti
on measurements were carried out in the process of samples heating at the
station "Precision diffractometry II» of the Institute of Catalysis of th
e Siberian Branch of the Russian Academy of Science at the 6 synchrotron r
adiation channel of the VEPP-3 electron storage ring. \n\nComparison of th
e data obtained in the analysis of hydrogen desorption curves with data of
the phase transitions in the zirconium-hydrogen and titanium-hydrogen sys
tems at the heating allowed describing the processes occurring in zirconiu
m and titanium hydrides under thermal treatment. \n\n1. C.P. Liang\, H.R.
Gong. Fundamental influence of hydrogen on various properties of alph-tita
nium // International Journal of Hydrogen Energy 35 (2010) 3812-3816.\n2.
Madina V.\, Azkarate I. Compatibility of materials with hydrogen. Particul
ar case: hydrogen embrittlement of titanium alloys // International Journa
l of Hydrogen Energy. 2009. No. 34. P. 5976-5980.\n3. Silva K.-R.F.\, DosS
antos D.S.\, Robeiro A.F.\, Almeida L.H. Hydrogen diffusivity and hydride
formation in rich-zirconium alloys used in nuclear reactors // Defect and
Diffusion Forum. 2010. Vol. 297- 301. P. 722-727.\n4. Zielinski A.\, Sobie
szczyk S. Hydrogen-enhanced degradation and oxide effects in zirconium all
oys for nuclear application // International Journal of Hydrogen Energy.
2011. Vol. 36. P. 8619-8629.\n\nhttps://indico.inp.nsk.su/event/3/contribu
tions/1287/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1287/
END:VEVENT
BEGIN:VEVENT
SUMMARY:New RF gun for Novosibirsk ERL FEL
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1288@indico.inp.nsk.su
DESCRIPTION:Speakers: vladimir volkov (BINP SB RAS)\nIn BINP SB RAS the ne
w rf gun making an intensive high-quality electron beam for injecting in N
ovosibirsk microtron recuperator (ERL) and driving Free Electron Laser (FE
L) is made. Bench tests of rf gun confirmed good results in strict accorda
nce with the calculations predicting average current of a bunch of 100 м
А\, energy of particles of 400 кэВ and an emittance ≤ 15 microns. Th
e rf gun stand testing showed reliable work\, unpretentious for vacuum con
ditions and stable in long-term operation. The bunch injection system buil
t-in to the existing system of the microtron injector with the static gun
and keeping high quality of bunches is developed and designed.\n\nhttps:/
/indico.inp.nsk.su/event/3/contributions/1288/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1288/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Novel technique for spatially resolved imaging of molecular bond o
rientations using X-ray birefringence: applications and developments
DTSTART;VALUE=DATE-TIME:20160706T054000Z
DTEND;VALUE=DATE-TIME:20160706T060000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1289@indico.inp.nsk.su
DESCRIPTION:Speakers: Igor Dolbnya (Diamond Light Source)\nBirefringence h
as been observed in anisotropic materials transmitting linearly polarized
X-ray beams tuned close to an absorption edge of a specific element in the
material. Synchrotron bending magnets provide X-ray beams of sufficiently
high brightness and cross section for spatially resolved measurements of
birefringence. The recently developed X-ray Birefringence Imaging techniqu
e has been successfully applied for the first time [1] at the Diamond Ligh
t Source versatile Test Beamline B16. The orientational order of C–Br bo
nds of brominated “guest” molecules within crystalline “host” tunn
el structures (thiourea or urea inclusion compounds) has been studied usin
g linearly polarized incident X-rays close to the Br K-edge. Imaging of do
main structures [1]\, changes in C–Br bond orientations associated with
order-disorder phase transitions [1]\, and the effects of dynamic averagin
g of C–Br bond orientations [2] have been demonstrated. The setup uses a
vertically deflecting high-resolution double-crystal monochromator upstre
am from the sample and a horizontally deflecting single-crystal polarizati
on analyser downstream with a Bragg angle as close as possible to 45°. In
this way\, the rotation angle of the polarization of the beam transmitted
through the sample is measured as in polarizing optical microscopy. The t
heoretical instrumental background is calculated and compared with experim
ental observations. The summary of recent results and some perspective dev
elopments are presented and discussed.\n\nReferences: \n\n[1] Palmer\, B.
A.\, Edwards-Gau\, G. R.\, Kariuki\, B. M.\, Harris\, K. D. M.\, Dolbnya\,
I. P. and Collins\, S. P. (2014) Science 344\, 1013-1016.\n\n[2] Palmer\,
B. A.\, Edwards-Gau\, G. R.\, Kariuki\, B. M.\, Harris\, K. D. M.\, Dolbn
ya\, I. P.\, Collins\, S. P. and Sutter\, J. P. (2015) J. Phys. Chem. Lett
6\, 561-567.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1289/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1289/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Properties of quarter wavelength coaxial cavity for triode-type th
ermionic RF gun
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1290@indico.inp.nsk.su
DESCRIPTION:Speakers: Konstantin Torgasin (Graduate School of Energy Scien
ce\, Kyoto University)\nSome infrared FEL facilities apply thermionic RF g
uns due to their advantage of compactness and cost effectiveness as compar
ed to RF photocathode electron guns. Other remarkable advantages are the l
ong lifetime and low vacuum condition requirements. On the other hand ther
mionic RF guns are suffering from back-bombardment phenomena\, which limit
s the bunch charge and macro-pulse duration. In order to overcome this dis
advantage a novel configuration named as triode-type thermionic RF gun\, w
hich has an additional small pre-bunching cavity around the cathode\, was
developed at Institute of Advanced Energy (IAE)\, Kyoto University. The tr
iode concept has already been proved by numerical simulation. For a proof
of principle experiment\, a quarter wave pre-bunching cavity was fabricate
d. The cold test of the quarter wave pre-bunching cavity at high and low R
F power has been completed. In this work we report results of hot test of
the cavity.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1290/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1290/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The study of the phase composition of ceramic materials obtained b
y SHS from previously mechanically activated reaction mixtures Ti-Cr-B
DTSTART;VALUE=DATE-TIME:20160706T102000Z
DTEND;VALUE=DATE-TIME:20160706T104000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1291@indico.inp.nsk.su
DESCRIPTION:Speakers: Victoria Kurbatkiina (National University of Science
and Technology "MISiS)\nIn this work\, ceramic materials based on borides
of transition metals were prepared by SHS compaction from the pre-mechani
cally activated (MA) of the powder mixtures. The use of МА enables SHS p
rocess in the low exothermic systems. The role of MA appeared in a simulta
neous increase in heat evolution and heat evolution rate of the combustion
reaction\, a positive influence on the thermodynamics and kinetics of the
process.\nKinetics of the SHS process\, stages of chemical transformation
s and structure formation in theTi Cr--B system were investigated. It is
demonstrated that the interaction of the reagents on the solid phase mecha
nism takes place at a temperature of the combustion. \nMA was found to mar
kedly affect the combustion temperature and burning velocity of Ti–Cr–
B blends. SHS reactions in Ti–Cr–B blends with Cr contents above 10% p
roceeded with involvement of gas transport agents. The role of gas transpo
rt was found to grow with increasing MA duration\, due to an increase in t
he amount of boron oxides.\nThe mechanisms of combustion and structure for
mation in Ti-Cr-B were well characterized using different method such as
stop combustion front\, SEM\, EDS\, X-ray photoelectron spectroscopy\, XR
D including the use of synchrotron radiation. \nResults\, the main reactio
n is the formation of the titanium borides. Then\, the complex borides ar
e formed in the post combustion zone and the secondary structure formation
zone. Ternary phases Cr4Ti9B and Ti2CrB2 were detected. Сr4Ti9B phase is
formed at a chromium content of up to 20%\, second boride (Ti2CrB2) is fo
rmed with increasing chromium concentrations up to 30%.\nIt is found that
they are chemical compounds - borides hexagonal lattice (structural types
hP28 / 5 and tP10 / 2).\nThe technology of compact samples of pre-activate
d mixture Ti-Cr-B and their properties were studied.\n\nhttps://indico.inp
.nsk.su/event/3/contributions/1291/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1291/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The End-Station "NanoPES" at the Kurchatov synchrotron radiation s
ource: Present status and prospects
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1292@indico.inp.nsk.su
DESCRIPTION:Speakers: Ratibor Chumakov (NRC "Kurchatov Institute")\nThe En
d-station "NanoPES"\, currently under construction\, is intended for the i
mplementation of techniques for angle-resolved photoemission spectroscopy
(ARPES)\, NEXAFS\, LEED\, SPM microscopy and spectroscopy.\nThe station w
as projected for fundamental researches in solid state physics\, surface s
cience and for processing technological operations in the course of creati
on devices for micro- and nanoelectronics.\nThe station is located at the
bending magnet beamline 6.5 and covers the region of excitation energies
between 25 eV and 1500 eV due to a plane grating monochromator. The electr
on energy analyzer used\, is a hemispherical analyser PHOIBOS 225 with an
energy resolution of 1 meV and an angular resolution of 0.1 °. The statio
n is provided with a complete set of accessories for in-situ sample prepar
ation\, sputtering and deposition of monolayer and submonolayer thin films
\, as well as AFM and STM microscope for in-situ topography and electronic
structure studies of samples.\nThe report shows the optical design\, the
specifications\, the first spectra and discussed prospects of development
of the station.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1292/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1292/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Nanoradiator therapy and synchrotron X-ray imaging of malignant br
ain tumor
DTSTART;VALUE=DATE-TIME:20160705T052000Z
DTEND;VALUE=DATE-TIME:20160705T054000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1293@indico.inp.nsk.su
DESCRIPTION:Speakers: Jong-Ki Kim (Catholic University of Daegu\, School o
f Medicine)\nGlioblastoma malformation is typical intractable malignant br
ain tumor that has less than 2 years as mean survival due to infiltrative
nature in conjunction with microvascular malformation (MVP). Conventional
drug delivery is limited by intact BBB in normal tissue surrounding MVP\,
and current radiotherapy is not indicative due to infiltration of tumor c
ell into normal brain. Therefore\, tumor-infiltrating MVP should be therap
eutic target. Recently we imaged MVP with tumor infiltration in rat glioma
model using synchrotron X-ray DEI CT technique. High-Z nanoparticles play
a role as nanoradiator\, burst release of low energy electrons and charac
teristic X-ray fluorescence\, when subject to X-ray photoelectric ionizati
on or high-energy ion beam-irradiated Coulomb scattering. During last deca
de we have developed dosimetry of nanoradiator effect and medical applicat
ion of novel site-specific nanoradiator therapy using either monochromatic
synchrotron X-ray or traversing Bragg-peak proton beam. Eventually nanora
diator therapy provide a new platform of therapeutic nanobeacon technology
by converting prodrug inert gold/iron nanoparticle into electron-emitting
drug. Realization of this concept in oncology and non-oncology would be d
emonstrated in this presentation. In addition\, high-resolution X-ray diff
raction CT imaging of skull-based brain is challenging and discussed with
our resolving efforts\n\nhttps://indico.inp.nsk.su/event/3/contributions/1
293/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1293/
END:VEVENT
BEGIN:VEVENT
SUMMARY:In situ determination of the active phase in palladium nanocatalys
t by X-ray absorption spectroscopy and X-ray diffraction
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1294@indico.inp.nsk.su
DESCRIPTION:Speakers: Aram Bugaev (Southern Federal University)\nHydrogena
tion of alkynes and alkenes over palladium catalyst is associated with for
mation of palladium hydrides and carbides phases\, which affects the selec
tivity and catalytic performance of the catalyst. The aim of this study is
to investigate the effect of the structural changes on the catalytic prop
erties of the material. We investigated the structural evolution of the in
dustrial palladium-based nanocatalyst in operando conditions during the ca
talytic hydrogenation of ethylene. The structure of the catalyst was follo
wed by X-ray absorption spectroscopy and X-ray powder diffraction\, while
the conversion level of ethylene to ethane was controlled by mass spectrom
eter. We observed that phase transitions occurring in palladium nanopartic
les lead to dramatic changes of the catalytic activity. In addition to sta
ndard Fourier-analysis of X-ray absorption data and Rietveld refinement of
diffraction patterns\, analysis of X-ray absorption near-edge structure (
XANES) allowed to discriminate between PdH and PdC species having similar
fcc structure. The PdC phase and pure Pd phase demonstrated extremely high
catalytic activity in ethylene to ethane hydrogenation\, while β-PdH sho
wed unexpectedly low activity.\n\nhttps://indico.inp.nsk.su/event/3/contri
butions/1294/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1294/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Power supply system for corrector magnets of the European X-Ray Fr
ee-Electron Laser
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1295@indico.inp.nsk.su
DESCRIPTION:Speakers: Oleg Belikov (Budker INP SB RAS)\nTotal length of th
e European X-Ray Free-Electron Laser (European XFEL) tunnel is 3\,4 km. Th
ere are used about 300 magnet correctors to justify position of electron b
eam. Each magnet is feed by separate power supply with high parameters. To
have a stable beam the short time (up to 1 sec) deviation of output curre
nt should be less than 10^-5\, long term stability should be better than10
^-4. For this application the BINP SB RAS developed 7 types of power suppl
ies with output current up to 10 A and output voltage up to 70 V. To provi
de high reliability of power supply system there was developed “hot repl
ace” system allowing remote replacement failed power supply by reserved
one. Now the power supply system is introducing in operation. The paper is
reviewing details of power supply system for European XFEL.\n\nhttps://in
dico.inp.nsk.su/event/3/contributions/1295/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1295/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Fabrication of high effective power silicon diffractive optics of
terahertz range by femtosecond laser ablation of silicon surface
DTSTART;VALUE=DATE-TIME:20160704T100000Z
DTEND;VALUE=DATE-TIME:20160704T103000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1296@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Pavelyev (Samara University)\nThe emergenc
e of coherent\, high power sources of THz radiation [1] has formed a need
for optical elements to control this radiation. It is known that high-powe
r THz beams can be controlled by silicon diffractive optical elements (DOE
s) [2\,3\,4]. The lithographic etching of a silicon substrate [2\,3\,4] ha
s disadvantages: fabrication of multi-level elements by lithographic etchi
ng requires an expensive and complicated procedure of photomask alignment\
, and binary (two-level) elements have limited energy efficiency. A possib
ility of the microfabrication of a high-effective power silicon diffractiv
e optics for terahertz range by laser ablation is investigated [5]. A four
-level silicon diffractive THz Fresnel lens has been fabricated for the fi
rst time by femtosecond laser ablation [5]. High repetition (f = 200 kHz)
femtosecond Yb:YAG laser was used for the formation of micro-relief at the
silicon surface. Features of the lens were investigated in the beam of th
e free electron laser at the wavelength of 141 µm. The measured diffracti
ve efficiency of the lens is in good agreement with the theoretical predic
tion [5]. \nThe experiments have shown the feasibility of laser ablation o
f the silicon surface to fabricate effective multilevel THz DOEs. \nImprov
ing the proposed technology of forming a silicon microrelief\, in particul
ar increasing the number of its quantization levels\, will eventually incr
ease the energy efficiency of silicon DOEs designed to control beams of TH
z radiation.\n\n1. Knyazev\, B. A. Novosibirsk terahertz free electron
laser: instrumentation development and experimental achievements / B.
A. Knyazev\, G.N. Kulipanov\, N.A. Vinokurov// Measur. Sci. Techn. – 201
0. – Vol. 21. – P. 13.\n2. Agafonov\, A.N. Silicon diffractive opti
cal elements for high-power monochromatic terahertz radiation / A.N. Agafo
nov\, B.O. Volodkin\, A.K. Kaveev\, B.A. Knyazev\, G.I. Kropotov\, V.S. Pa
vel’ev\, V.A. Soifer\, K.N. Tukmakov\, E.V. Tsygankova\, Yu.Yu. Choporov
a // Optoelectronics\, Instrumentation and Data Processing. – 2013. –
Vol. 49\, Issue 2 – P. 189-195. \n3. Agafonov A.N. Control of transve
rse mode spectrum of Novosibirsk free electron laser radiation // A.N. Aga
fonov\, Yu.Yu. Choporova\, A.V. Kaveev\, B.A. Knyazev\, G.I. Kropotov\, V.
S. Pavelyev\, K.N. Tukmakov\, B.O. Volodkin\, /Applied Optics. – 2015
– Vol. 54\, N. 12 – 3635-3639. \n4. Knyazev B.A. Generation of Ter
ahertz Surface Plasmon Polaritons Using Nondiffractive Bessel Beams with O
rbital Angular Momentum// Yu.Yu. Choporova\, M.S. Mitkov\, V.S. Pavelyev\,
B.O. Volodkin/Phys. Rev. Lett.- 2015-Vol 115 -163901.\n5. Komlenok\, M
.S. Fabrication of a multilevel THz Fresnel lens by femtosecond laser abla
tion// B.O. Volodkin\, B.A. Knyazev\, V.V. Kononenko\, T.V. Kononenko\, V.
I. Konov\, V.S. Pavelyev\, V.A. Soifer\, K.N. Tukmakov\, Yu.Yu. Choporova/
Quantum Electronics-2015-Vol. 45\, N 10- 933 –936.\n\nhttps://indico.inp
.nsk.su/event/3/contributions/1296/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1296/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The research of the superconducting undulator prototype with neutr
al poles and features of the magnetic field distribution in it.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1297@indico.inp.nsk.su
DESCRIPTION:Speakers: Sergey Khrushchev (BINP)\nThe article describes supe
rconducting undulator prototype with neutral poles designed and fabricated
in Budker Institute of Nuclear Physics. In the upper half of the undulato
r even-numbered poles have a core with a winding and odd - core without wi
nding. In the lower half vice versa. This design allows to provide more ac
curate period and reduces the probability of mechanical movements caused b
y the action of ponderomotive forces leading to quench of superconductivit
y. The article also describes the features of the magnetic field distribut
ion in such windings configuration.\n\nhttps://indico.inp.nsk.su/event/3/c
ontributions/1297/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1297/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Some aspects of crystal centering during X-ray high-throughput pro
tein crystallography experiments.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1298@indico.inp.nsk.su
DESCRIPTION:Speakers: Yury Gaponov (Department of atmospheric research\, N
ovosibirsk State University\, Novosibirsk\, Russia)\nA set of algorithms a
nd procedures of a crystal loop centering during X-ray high-throughput pro
tein crystallography experiment has been designed and developed.\nA simple
algorithm of the crystal loop detection and preliminary recognition has b
een designed and developed. The crystal loop detection algorithm is based
on finding out the crystal loop ending point (opposite to the crystal loop
pin) using image cross section (digital image column) profile analysis. T
he crystal loop preliminary recognition procedure is based on finding out
the crystal loop sizes and position using image cross section profile anal
ysis. The crystal loop fine recognition procedure based on Hooke-Jeeves pa
ttern search method with an ellipse as a fitting pattern has been designed
and developed. The procedure of restoring missing coordinate of the cryst
al loop is described. Based on developed algorithms and procedures the opt
imal autocentering procedure has been designed and developed. A procedure
of optimal manual crystal centering (Two Clicks Procedure) is described.\n
Developed procedures have been integrated into control software system PCC
S installed at crystallography beamlines Photon Factory BL5A and PF-AR NW1
2\, KEK.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1298/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1298/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Some features of the structure rearrangement in mixed and binary Z
r-Ti sol xerogels.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1299@indico.inp.nsk.su
DESCRIPTION:Speakers: Yury Gaponov (Department of atmospheric research\, N
ovosibirsk State University\, Novosibirsk\, Russia)\nProcess of gelation a
nd thermal decomposition at different temperatures of the Zr/Ti sol-xeroge
ls\, chemically identical but prepared by different methods (mixed and bin
ary)\, was studied by SAXS/WAXD with the use of SR.\nPrimary particles in
mixed and binary Zr/Ti sol-xerogels have different structure. Using the qu
alitative contrast variation method it was concluded\, that primary partic
le in mixed system consists of Ti nuclear surrounded by Zr atoms in the ou
ter layer of the particle. In contrast\, primary particle in binary system
consists of Zr nuclear surrounded by Ti atoms in the outer layer of the p
article.\nMultistage thermal decomposition of the Zr/Ti xerogels proceeds
through an intermediate phase formation. In the case of the mixed Zr/Ti xe
rogel the intermediate phase has a distorted (amorphous) structure of anat
ase (TiO2) which is formed\, probably\, inside the primary particle of the
xerogel. In this case\, during the thermal decomposition the interatomic
distance in the intermediate phase is similar to the interplane distance o
f metal planes in final product (crystalline ZrTiO4 powder). In the case o
f a binary Zr/Ti xerogel\, the intermediate phase has an amorphous structu
re consisting\, probably\, of the disordered metal atoms (probably\, in an
oxide state) surrounded by water molecules.\n\nhttps://indico.inp.nsk.su/
event/3/contributions/1299/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1299/
END:VEVENT
BEGIN:VEVENT
SUMMARY:EXPERIENCE OF USE OF X-RAY ENERGY-DISPERSIVE AND MONOCHROMATIC DIF
FRACTOMETRY FOR STRUCTURAL RESEARCHES OF BIOLOGICAL SYSTEMS USING SYNCHROT
RON RADIATION
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1300@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladivir Korneev (Institute of Cell Biophysics\, RAS
\, Institutskaya ul. 3\, 142290\, Pushchino\, Russia)\nThe important role
in the study of the structural mechanism of the functional activity of bio
logical systems belongs to the instrumental and methodical developments in
tended for the energy-dispersive (Θ=const) and monochromatic (λ=const) d
iffractometry with synchrotron radiation (SR) usage.\nResults of our long-
term developments are considered. At one method the collimated X-ray beam
of polychromatic radiation ("white spectrum") is directed on the object\,
and the diffraction pattern represent the intensity distribution as functi
on of a wavelength at the fixed scattering angle (Θ)\, i.e. lattice-plane
spacing of object are uniquely determined by a discrete set of the photon
energy. Note the spatial resolution of different zones of the X-ray patte
rn can be changed by varying Θ value that allowed to record weak reflecti
ons and to register X-ray pattern with high resolution for material with l
arge spacings of identity. The ‘λ=const’ method determines by dedicat
ed monochromatic wavelength from continuous SR spectrum\, and then the X-r
ay beam is collimated by X-ray optical zoom lenses\; obtained diffraction
patterns demonstrate the intensity distribution as a function of scatterin
g angle. The ‘Θ=const’ method provides increasing intensity of the X-
ray beam on 2-3 orders\, however earlier during creation of the first SR s
ources these advantages were unattainable because of under quick-action of
the detection system. The ‘λ=const’ method is traditionally used wit
h position sensitive coordinate detectors. Now power-dispersion detectors
with high performance of registration and energy resolution are developed\
, therefore it is very inviting to use polychromatic radiation.\nVarious X
-ray diffraction stations created by us (KEMUS\, FRAKS\, DICSI) on the ope
rating channels of the storage rings VEPP-3\, VEPP-4 (Siberian Center of S
ynchrotron and Terahertz Radiations\, SCSTR\, Novosibirsk) and Siberia-2 (
Kurchatov Center of Converging of Nano-\, Bio-\, Information-\, and Cognit
ive Sciences and Technologies\, NBIC\, Moscow) are presented. This equipme
nt based on block - modular configuration\, i.e. the main devices of stati
ons could be used as independent modules for any experimental scheme. Desp
ite different character of current tasks\, a many things in the experiment
al technique were unified\, for example\, such blocks as monochromatic and
reflecting zoom lenses\, collimators of the primary beam\, and also the v
acuuming device\, remote control of the optical system components and soft
ware.\nResults of the SAXS/WAXS diffraction investigations of biological t
issues at different physiological states are considered. There are present
ed also the first experimental results of X-ray diffraction study of test
objects (collagen and muscle) received by the Θ=const method with using S
R of the VEPP-3 storage ring.\nThe work is supported by the RFBR grant # 1
4-44-03667.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1300/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1300/
END:VEVENT
BEGIN:VEVENT
SUMMARY:GLOBAL RESEARCH INFRASTRUCTURES (GRI) ON NEW ESFRI ROADMAP – EUR
OPEAN PERSPECTIVE
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1301@indico.inp.nsk.su
DESCRIPTION:Speakers: MARINE MELKONYAN (COORDINATOR OF THE NATIONAL CONTAC
T POINT FOR RESEARCH INFRASTRUCTURES\, NATIONAL UNIVERSITY OF SCIENCE AND
TECHNOLOGY "MISIS")\nM.K. Melkonyan\, E.A. Levashov\, Yu.O. Krasilnikova\n
\nNational University of Science and Technology “MISIS”\, Leninsky pro
spect\, 4\, Moscow\, 119049\, Russia\, e-mail: fp7-infra@misis.ru\n\n Th
e term “research infrastructures” (RI) refers to facilities\, resource
s and related services used by the scientific community to conduct top-lev
el activities in all fields of science. This definition covers major scien
tific equipment or sets of instruments\; knowledge-based resources such as
collections\, archives or data banks\; e-Infrastructures (networks\, comp
uting resources\, software). \n Some research facilities\, particularly
in physics or astronomy (called global research infrastructures - GRI) are
so large\, complex or expensive that they require international cooperati
on for construction and operation and it is being impossible for one count
ry or region alone to build and operate these facilities. The examples of
GRIs are CERN: the European Organization for Nuclear Research\; JINR: the
Joint Institute for Nuclear Research\; ESRF: European Synchrotron Radiatio
n Facility\; SKA: Square Kilometer Array\, the next generation radio teles
cope. \n The efficient planning\, design\, construction and operation of
the global research infrastructures requires not only a sharing of costs\
, but also the sharing of knowledge. A Group of Senior Officials (GSO) on
GRIs established in 2008 strives to reach a common understanding on matter
s such as governance\, funding and management of global research infrastru
ctures. Russia is the member of the GSO group. \n According to the last
GSO Progress report 2015\, the current list of the national based research
infrastructures of global interest covers 39 RIs from 14 countries\; amon
g them there are six Russian Mega science projects. \n A key area of R
ussia-EU S&T cooperation involves the joint development of GRIs. Russia is
a partner of a number of research infrastructure initiatives located in E
urope: the EU X-ray Free-Electron Laser (XFEL)\; the Facility for Antiprot
on and Ion Research (FAIR)\; the International Thermonuclear Experimental
Reactor (ITER)\; the Large Hadron Collider (LHC\, CERN)\; the European Syn
chrotron Radiation Facility (ESRF). All these projects have a global dimen
sion and participants and are located on the roadmap of ESFRI\, the Europe
an Strategy Forum on Research Infrastructures.\n Since its foundation in
2002\, ESFRI has played a leading role in coordination of research infras
tructures across Europe and development of integrated and coherent approac
h for policy making in this field. \n The new ESFRI roadmap 2016 consist
s of 21 ESFRI Projects with a high degree of maturity and 29 ESFRI Landmar
ks - RIs that reached the implementation phase by the end of 2015. The Lan
dmarks in the area of physical sciences and engineering cover 11 internati
onally well-known facilities: E-ELT –European Extremely Large Telescope\
; ELI- European Light infrastructure\, EMFL- European magnetic field labor
atory\; ESRF UPGRADES\; European spallation source\; European XFEL\, FAIR\
, HL-HLC\; ILL20/20\, SKA\; SPIRAL 2. The impact of many of the ESFRI rese
arch infrastructures is global and this has prompted a reflection in two m
ain fora: the Global Science Forum of OECD and the GSO group tasked with d
efining a strategy for GRIs. \n Developing excellent RIs for physical sc
iences and engineering is one of the top European priorities. Bringing tog
ether scientists and users of the Europe’s major projects with their cou
nterparts all over the world has an intention to generate new synergies th
at will stimulate a truly global integration of existing infrastructures.
The key of this integration process will be the efficient access to and th
e open sharing of data and information produced by the RIs.
\n This work was supported under th
e grant No. 14.572.21.0004 of the Federal Targeted Program for Research an
d Development in Priority Areas of Development of the Russian Scientific a
nd Technological Complex for 2014-2020.\n\nhttps://indico.inp.nsk.su/event
/3/contributions/1301/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1301/
END:VEVENT
BEGIN:VEVENT
SUMMARY:In situ X-ray diffraction studies of Ce0.9Y0.1O2-δ\, Ce0.65Pr0.25
Y0.1O2-δ and Pr6O11
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1302@indico.inp.nsk.su
DESCRIPTION:Speakers: Zakhar Vinokurov (BIC SB RAS)\nCe0.9Y0.1O2‑δ(YDC)
\, Ce0.65Pr0.25Y0.1O2‑δ(YPDC) and Pr6O11 were synthesized by Pechini te
chnique and sintered at 1100°C. The samples were characterised by X-ray d
iffraction (XRD) and TEM methods.\n\nIt has been found that oxides behave
differently after change of the ambient oxygen partial pressure (pO2). In
situ XRD experiments showed that YPDC cell reversibly expands after change
to the lower pO2 at 500-600C due to the oxygen loss while YDC didn't show
any significant structure changes. For the Pr6O11 the following structure
changes were observed at the same conditions: monoclinic → cubic → tr
igonal.\n\nWe also estimated the oxygen mobility coefficients(kchem - oxyg
en surface exchange coefficient and Dchem - oxygen chemical diffusion coef
ficient) of all samples by analysis of the cell volume relaxation (CVR) cu
rves obtained from the XRD data after abrupt change of the oxygen partial
pressure from 100 mBar to 10 mBar. Since no relaxation was observed for YD
C\, kchem and Dchem could not be calculated. For YPDC process is limited b
y surface exchange thereby only kchem could be calculated. The following k
chem values were determined for YPDC 1.3*10^(-4) cm/s at 500 °C and 1.6*1
0^(-4) cm/s at 600 °C. For Pr6O11 both kchem and Dchem could be calculate
d simultaneously and were about 5.0·10^(-4) cm/s and 5.0·10^(-7) cm^2/s
at 500 °C.\n\nIn situ XRD experiments were carried out with involvement o
f equipment belonging to the shared research center “SSTRC”.\n\nhttps:
//indico.inp.nsk.su/event/3/contributions/1302/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1302/
END:VEVENT
BEGIN:VEVENT
SUMMARY:MECHANISMS OF COMBUSTION AND STRUCTURE FORMATION IN SHS- SYSTEMS W
ITH PARTICIPATION OF TWO AND MORE CHEMICAL REACTIONS
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1303@indico.inp.nsk.su
DESCRIPTION:Speakers: Evgeny Levashov (National University of Science and
Technology "MISiS")\nThe mechanisms of combustion and structure formation
in perspective systems Ta-Ti-C\, Mo-Si-B\, Ta-Zr-C\, Zr-Si-B\, Ti-C-Ca3(PO
4)2\, Cr-Al-Si-B\, Si-C-B were well characterized using a combination of v
arious techniques including dynamic XRD\, stop combustion front\, SEM\, TE
M\, Raman spectroscopy\, etc. \nIt was established that gas transport reac
tions is to control the combustion in some cases. In system (100%–X)(Ti+
0\,5C) + X(Ta+C) with X= 10 and 30% an abrupt increase of Uc and Tc occur
s as a result of the transfer from the splitting to merging mode\, which i
s accompanied by an increase in heat release as a result of two parallel c
hemical reactions. In the case of X= 50%\, dependences Tc(T0) and Uc(T0) a
re linear over an a wide range of T0. \nThe following processes are defin
ed the SHS for Si-rich Mo-Si-B compositions: silicon melting\, its spreadi
ng over the surfaces of the solid Mo and B particles\, followed by B disso
lution in the melt\, and formation of intermediate Mo3Si-phase film. The s
ubsequent diffusion of silicon into molybdenum results in the formation of
MoSi2 grains and molybdenum boride phase forms due to the diffusion of mo
lybdenum into B-rich melt. The formation of MoB phase for B-rich compositi
ons may occur via gas-phase mass transfer of MoO3 gaseous species to boron
particles. The stages of chemical interaction in the combustion wave are
also investigated. The obtained results indicate the possibility of both p
arallel and consecutive reactions to form molybdenum silicide and molybden
um boride phases. Thus the progression of combustion process may occur thr
ough the merging reaction fronts regime and splitting reaction fronts regi
me. Molybdenum silicide formation leads the combustion wave propagation du
ring the splitting regime\, while the molybdenum boride phase appears late
r.\nKinetics of the SHS process\, stages of chemical transformations and s
tructure formation of ceramic materials in the Cr-Al-Si-B system were inve
stigated. The effect of green mixture composition and initial temperature
on the combustion rate Uc and combustion temperature Tc\, which reduce wit
h increasing Al content\, was studied. An increase in the initial temperat
ure of the SHS process causes a linear increase of Uc and Tc in the range
of T0 = 290–750 K. This is a fact that each composition is characterize
d by the similar combustion mechanism\, when the stages of chemical reacti
ons of product formation remain unchanged. However\, an increase in T0 abo
ve 750 K\, probably\, may lead to exponential character of Uc growth. Furt
hermore\, an increase in Al content increases the proportion of the Al–S
i eutectic melt. The stages of chemical transformations and the mechanism
of structure formation in the combustion wave were studied. \nDependences
Tc(T0) and Uc(T0) of mechanically activated (MA) Ta-Zr-C exothermic mixtur
es were determined. The self-heating phenomenon is observed in argon atmos
phere at T0 > 380 K due to zirconium particles oxidation by adsorbed oxyge
n. ZrO2 was formed in the combustion zone at the initial stage of chemical
interaction\; it is subsequently transformed into ZrC. TaC was formed in
the combustion zone\, while the single-phase (Ta\, Zr)C with the lattice p
arameter of 0.4479 nm was formed closer to the post-combustion zone.\nKine
tics and mechanism of SHS process\, stages of chemical transformation and
structure formation in systems Zr-Si-B\, Ti-C-Ca3(PO4)2\, Si-C-B were also
discussed.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1303/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1303/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Present Status and Perspectives of Long Wavelength Free Electron L
asers at Kyoto University
DTSTART;VALUE=DATE-TIME:20160704T090000Z
DTEND;VALUE=DATE-TIME:20160704T093000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1304@indico.inp.nsk.su
DESCRIPTION:Speakers: Heishun Zen (Institute of Advanced Energy\, Kyoto Un
iversity)\nA mid-infrared FEL named as KU-FEL has been developed for energ
y related sciences at Institute of Advanced Energy\, Kyoto University. The
wavelength range of KU-FEL is 5-20 micro-m and routinely operated for var
ious user experiments. A compact THz-FEL\, which consists of a photocathod
e RF gun\, a bunch compressor and an undulator\, is now under development.
Present status and future plan of the FEL accelerators at Kyoto Universit
y will be presented in the conference.\n\nhttps://indico.inp.nsk.su/event/
3/contributions/1304/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1304/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The possibility of direct analysis of biological tissues of a few
milligrams by SR XRF method
DTSTART;VALUE=DATE-TIME:20160705T080000Z
DTEND;VALUE=DATE-TIME:20160705T082000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1305@indico.inp.nsk.su
DESCRIPTION:Speakers: Valentina Trunova (Nikolaev Institute of Inorganic C
hemistry SB RAS)\nDevelopment and improvement of analytical methods to exp
lore the element and microelement composition of biological tissues enable
s obtaining additional information on functioning of systems of organs and
tissues. It is the information on the multi-element composition of biopsy
material of living organisms that is relevant. Since this material always
has very low weight\, 4 mg to 0.5 mg of dry weight\, such amount of sampl
e material cannot be directly explored by the conventional non-destructive
methods of analysis. The works performed use the unique properties of syn
chrotron radiation\, which enable analysis of small-weight samples (a few
milligrams)\, which is virtually impossible with the conventional methods.
The SR XRF method enables analysis of small-weight samples and selection
of optimal conditions for analysis of the elements. For nine years\, the e
xperimental station for X-ray fluorescence analysis (VEPP-3\, BINP) has be
en involved in joint systematic exploration with Meshalkin Research Instit
ute of Blood Circulation Pathology. About 1000 samples of the vascular sys
tem in patients with different pathologies have been analyzed: congenital
heart disease\, coronary heart disease\, dilated cardiomyopathy (heart tra
nsplant)\, aortic aneurysm\, etc. A new sample-preparation method for dire
ct analysis of biopsy material weighing to 0.5 mg was developed. A techniq
ue of analysis of fragments of biopsy and surgical samples by K-lines of S
\, Cl\, K\, Ca\, Sc\, Ti\, V\, Cr\, Mn\, Fe\, Co\, Ni\, Cu\, Zn\, As\, Se\
, Br\, Kr \, Rb\, Sr\, and Mo was developed. The results of the determinat
ion of the elemental composition of fragments of biopsy and autopsy sample
s of cardiovascular disease by the SR XRF method gave a method of evaluati
ng the functional state of the heart. It can be used in clinical practice
for pre-testing in pathology of heart transplant and in aortic dissection.
\n\nhttps://indico.inp.nsk.su/event/3/contributions/1305/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1305/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Development of compact SR light sources in JAI and in UK
DTSTART;VALUE=DATE-TIME:20160707T100000Z
DTEND;VALUE=DATE-TIME:20160707T103000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1306@indico.inp.nsk.su
DESCRIPTION:Speakers: Andrei Seryi (John Adams Institute)\nIn this overvie
w talk we will describe development of compact light sources of various ty
pes\, ranging from plasma acceleration betatron light sources to compact S
C ERL sources\, in the John Adams Institute and in UK. We will describe th
e accelerator science challenges and progress in developments of such sour
ces\, in particular in increasing the average flux and repetition rate of
such sources and will also illustrate the prospects of practical use of su
ch sources by examples of their application for medical studies.\n\nhttps:
//indico.inp.nsk.su/event/3/contributions/1306/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1306/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Probing magnetic sublattices in multiferroic Nd0.5Ho0.5Fe3(BO3)4 s
ingle crystal via hard x-ray magnetic circular dichroism
DTSTART;VALUE=DATE-TIME:20160707T054000Z
DTEND;VALUE=DATE-TIME:20160707T060000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1307@indico.inp.nsk.su
DESCRIPTION:Speakers: Mikhail Platunov (Kirensky Institute of Physics)\nWe
present an element-specific magnetizations study of the multiferroic Nd0.
5Ho0.5Fe3(BO3)4 single crystal. Our experimental results confirm the coexi
stence of three magnetic subsystems (Fe\, Ho\, and Nd). It was found that
the Ho magnetic moment undergoes the pronounced spin-reorientation transit
ion. At the magnetic ield (less than 1 T) the Ho and Nd magnetization curv
es demonstrate different of the slopes indicating different strength of f-
d exchange interactions with iron subsystem. It was shown that the Fe magn
etic moment behave like a weak ferromagnet\, but not antiferromagnetically
. These magnetic findings are relevant to understand magnetism of Nd0.5Ho0
.5Fe3(BO3)4 single crystal and other multiferroic ferroborates.\n\nThis st
udy was supported in part by the grants of the Council for Grants of the P
resident of the Russian Federation (SP-938.2015.5\, NSh-7559.2016.2)\, the
Russian Foundation for Basic Research (project nos. 16-32-60049 mol_a_dk\
, 16-32-00206 mol_a). The work of first author (M.P.) was supported by the
grant of KSAI ‘‘Krasnoyarsk Regional Fund of Supporting Scientific an
d Technological Activities’’ and by the program of Foundation for prom
oting the development of small enterprises in scientific and technical sph
ere (“UMNIK” program).\n\nhttps://indico.inp.nsk.su/event/3/contributi
ons/1307/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1307/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The new control for magnet system of KCSR.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1308@indico.inp.nsk.su
DESCRIPTION:Speakers: Evgeniy Kaportsev (NRC Kurchatovskiy institut)\nThe
running cycle of Kurchatov Synchrotron Radiation Source (KSRS) includes th
e injection of electrons with energy 80 MeV from the linear accelerator in
the booster storage ring Siberia-1\, the accumulation of a electron curre
nt up to 400 mA and\, then\, electron energy ramping up to 450 MeV with th
e subsequent extraction of electrons in the main ring\, storage ring Siber
ia-2\, and accumulation there up to 300 mA\, and at last the energy rampin
g up to 2.5 GeV.\nSeveral years ago\, a modernization of the current syste
m of automated control systems (ACS) has started. This article presents on
e of the most important parts - the new control subsystem of the magnet sy
stem.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1308/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1308/
END:VEVENT
BEGIN:VEVENT
SUMMARY:SR micro-XRF installation on VEPP-3 storage ring. An approach and
difficulties in increasing the spatial resolution.
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1309@indico.inp.nsk.su
DESCRIPTION:Speakers: Dmitry Sorokoletov (Budker Institute of Nuclear Phys
ics SB RAS)\nX-ray fluorescence microanalysis on synchrotron radiation bea
ms (SR micro-XRF) is a method to explore the elemental composition of samp
les and objects of various nature with a typical spatial resolution of 15
to 25 μm. Such resolution\, available in qualitative micro-XRF (mapping o
f fluorescent signal distribution or exploration of area of interest witho
ut detailed consideration of effects caused by absorption by a sample) is
defined by the transverse size of the focal spot of x-ray optics used. As
a rule\, up-to-date (monolithic) polycapillary lenses are applied. This q
ualitative elemental mapping in some cases can provide useful information.
It can be in demand\, for example\, in reconstruction of paleoclimate (la
yered samples of bottom sediments\, so called varves) and conditions of ro
ck formation in deposit occurrences\, as well as in examination of biolog
ical objects (hair and large cells)\, particles of earth and meteorite dus
t and some other objects [1-2].\n\nThe SR XRF experimental station on the
VEPP-3 storage ring (the SCSTR) [3] is equipped with the installation "SR
micro-XRF"\, which is intensely used by a number of users in most of these
areas of research. The installation was engaged in an extensive series of
experiments [3] using qualitative SR micro-XRF\; unique results were obta
ined in several cases. Two directions of improving the method and installa
tion were selected so far. The first one is development of certified techn
iques of (semi-) quantitative XRF\, and the second one is 1.5-2 time impro
vement of the spatial resolution due to application of complicated algorit
hms to process experimental data (so called regularization)\, including em
bedded indirect accuracy control.\n\nRegularization is a method of approxi
mate solution to unstable inverse problems. It is based on certain control
led introduction of systematic error into the result. This error is introd
uced so that its contribution optimally balances [4\, p. 52-55] the influe
nce of random noise\, because of which the problem cannot be accurately so
lved by traditional methods. Development of any regularization algorithms
implies analysis of feasibility of the above rule (in other words\, the co
nvergence of the approximate solution) over the entire range of all input
parameters. The algorithm user is assumed to know the rules for use of one
or another regularizing procedure (that may expect\, for example\, normal
distribution of noise\, absence of systematic errors\, special prior cons
traints to the solution\, and others) and adhere to them. Unfortunately\,
this is not always the case\, and application of regularization of algorit
hms is often blind and inefficient\, especially when third-party programs
are used.\n\nThis work presents an attempt of non-strict but effective pra
ctical analysis of the influence of various factors "hindering" the regula
rization (inaccuracy in the determination of the instrumental function\, d
iscretization errors\, Gibbs boundary effects etc.) on the process of solv
ing inverse deconvolution problems arising in SR micro-XRF using the Tikho
nov algorithm [4\, p. 52]. The analysis performed resulted in practical re
commendations on the optimal regimes of experiment with improved spatial r
esolution and highlighted the role of numerical simulation in the control
of solving real inverse deconvolution problems.\n\nThis work was supported
by the RFBR Grants № 14-02-00631\, 16-32-00705. The work by D.S. Soroko
letov was supported by a scholarship of the President of the Russian Feder
ation (SP-2761.2016.2).\n\nReferences\n\n[1] S. Majumdara\, J. R. Peralta
-Videaa\, H. Castillo-Michel et al. Analytica Chimica Acta. 2012. № 755.
1–16.\n\n[2] B. Menez\, H. Bureau et al. Modern Research and Educationa
l Topics in Microscopy. 2008. Vol. 2. 976-988.\n\n[3] http://ssrc.inp.nsk.
su/CKP/stations/passport/3/\n\n[4] S.I. Kabanikhin. Inverse and incorrect
problems (in Russian). Novosibirsk\, Siberian scientific publishing house.
2009. 457 p.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1309/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1309/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Duration of coherent synchrotron radiation pulses accessed via tim
e-resolving and correlation techniques
DTSTART;VALUE=DATE-TIME:20160706T100000Z
DTEND;VALUE=DATE-TIME:20160706T102000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1310@indico.inp.nsk.su
DESCRIPTION:Speakers: Andreas Pohl (Humboldt-University Berlin)\nCoherent
synchrotron radiation (CSR) is emitted from bunches of relativistic electr
ons in a storage ring. The CSR spectrum depends on the shape of the electr
on bunch from which the CSR radiation is emitted. Instantaneous monitoring
of the form and duration of the field transients in CSR pulses is importa
nt for applications in pump-probe studies of carrier dynamics in semicondu
ctors and superconductors\,where the required excitation must be simultane
ously unipolar and much shorter than the expected relaxation time.\nHere w
e use two types of ultra-fast detectors\, Schottky diodes and superconduct
ing microbridges\, to evaluate the duration of transient field-oscillation
s in CSR pulses under stable average intensity of the CSR source by means
of time-resolving and field-correlation techniques. We show that both meth
ods deliver close results.\n\nhttps://indico.inp.nsk.su/event/3/contributi
ons/1310/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1310/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Coherent hard X-ray microscopy for the characterization of mesosco
pic materials
DTSTART;VALUE=DATE-TIME:20160707T070000Z
DTEND;VALUE=DATE-TIME:20160707T074000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1311@indico.inp.nsk.su
DESCRIPTION:Speakers: Irina Snigireva (European Synchrotron Radiation Faci
lity)\nWe present a coherent high energy X-ray microscope to study the wid
e range of natural and artificial mesoscopic materials that are structured
on scales of the order of a few to a few hundred nanometers. The concept
of the proposed microscope is based on employing compound refractive lense
s allowing to retrieve high resolution diffraction pattern and real-space
images in the same experimental setup [1-4]. This idea\, well-known for th
e studies of crystals by high resolution transmission electron microscopy\
, is the key ingredient of our approach.\nThe microscope operates under a
coherent illumination where a diffraction pattern of the specimen is forme
d in the back focal plane of the condenser and an inverted two-dimensional
image of the object is formed by objective lens in the image plane [5]. T
he diffraction mode is used to investigate the structure over the macrosco
pic distances and to orient the crystals parallel to the low index directi
on to perform high-resolution imaging on the local scale. The image format
ion relies on phase contrast due to the interference of several diffracted
beams [6]. A high spatial coherence is needed in the imaging mode to ensu
re a reasonable contrast. The coherence in terms of the angular source siz
e determines the lens angular resolution (\n\nhttps://indico.inp.nsk.su/ev
ent/3/contributions/1311/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1311/
END:VEVENT
BEGIN:VEVENT
SUMMARY:SR XRF in identification of trace elements in trace amounts of hum
ic acids
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1312@indico.inp.nsk.su
DESCRIPTION:Speakers: Maria Dergacheva (Institute for Soil Science and Agr
icultural Chemistry of SB RAS)\nHumic acids (humic and fulvic acids) are n
atural substances that perform a number of functions in the biosphere to m
aintain its stability. This is due to the ability of humic acids to accumu
late\, deposit\, and store carbon and a wide range of trace elements for l
ong\, geologically-comparable periods\, as well as inhibiting chemical com
pounds toxic to living organisms. The content of humic acids in soils and
natural and man-made deposits is ambiguous. The amount of humic acids can
often be deciles (or even less) of percent. This means handling of very la
rge masses\, up to a kilogram or more\, of soil samples to study. This\, i
n turn\, limits the possibility of quantitative research to identify the e
cological state of the environment. Since the extracted preparations of hu
mic acids have a weight of milligrams\, there arises a problem of non-dest
ructive methods for their investigation and creation of base of preparatio
ns of humic acids for their further study.\nTesting of different methods o
f analysis (NAA\, two-jet arc plasma AES etc.) for determination of the tr
ace element content in humic acids resulted in a conclusion that X-ray flu
orescence analysis using synchrotron radiation (SR XRF)\, which a non-dest
ructive and multi-element method\, fits the best to a wide range of proble
ms concerning the condition of the natural environment. It is particularly
important to identify elements such as As\, Se\, Br\, Rb\, Sr\, Y\, Zr\,
Mo\, I\, Pb\, Th\, and U\, determination of which in humic acids by other
methods may be difficult or unreliable. Thus\, the use of SR XRF in identi
fying a wide range of trace elements in humic acids enables\, first\, usin
g weights of a few milligrams\, secondly\, extension of the possible range
of elements to identify\, and\, finally\, storage of preparations of this
natural component\, which is very significant in the functioning of the b
iosphere\, for further research.\n\nhttps://indico.inp.nsk.su/event/3/cont
ributions/1312/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1312/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mercury in ancient organic materials (Noin-Ula\, Mongolia): EDXRF\
, SRXRF and micro-SRXRF analysis
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1313@indico.inp.nsk.su
DESCRIPTION:Speakers: Valentina Zvereva (Nikolaev Institute of Inorganic C
hemistry SB RAS)\nRecently the anomalously high content of copper in ancie
nt hairs in royal burials of Xiongnu (I B.C. – I A.D.\, Northern Mongoli
a) was discovered. Detailed investigation of all types of organic findings
from the burials was performed by X-ray fluorescent technique with synchr
otron radiation (SRXRF)\, X-ray microtomography\, X-ray absorption spectro
scopy (XANES and EXAFS) and electron microscopy. The results revealed the
exogenous source of copper in ancient hairs and allow to exclude copper po
isoning in lifetime [1]. There were 40 hair plaits in ancient burial site.
Mercury was detected in all hair samples (up to 1200 ppm). High content o
f Hg may be caused by the burial environment as well as the accumulation i
n lifetime. Information\, which can elucidate the probable cause of such a
high Hg content in hairs\, can be helpful in reconstruction of culture\,
life and technologies of ancient people. \nThe unique archaeological mater
ial demands nondestructive analytical methods\, as SRXRF analysis and X-ra
y microanalysis (µSRXRF). \nSRXRF methodology for Hg det
ermination in archaeological hair samples\, mercury concentration in metal
lic objects from the burial\, and information on cross-section distributio
n of Hg in hair strand (µSRXRF) allow to determine probable source of mer
cury in ancient hairs. \n\n[1]. V. Trunova\, V. Zvereva\, N. Polos
mak\, D. Kochubey\, V. Kriventsov and K. Kuper. Investigation of Organic M
aterials From the ‘Royal’ Burials of Xiongnu (Noin-Ula\, Mongolia) by
Srxrf and XAFS Methods. // Archaeometry. – 2015. – V. 57. – N. 6.
– P. 1060-1077. DOI: 10.1111/arcm.12109.\n\nhttps://indico.inp.nsk.su/ev
ent/3/contributions/1313/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1313/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ultrafast Pump-probe Facility based on an RF Photogun
DTSTART;VALUE=DATE-TIME:20160706T090000Z
DTEND;VALUE=DATE-TIME:20160706T094000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1314@indico.inp.nsk.su
DESCRIPTION:Speakers: Young Uk Jeong (Korea Atomic Energy Research Institu
te)\nSmall-scale accelerator-based radiation sources have been used for de
veloping advanced technologies and exploring new science with high conveni
ence and low cost. Sometimes they are competitive comparing with giant fac
ilities like X-ray free-electron lasers (X-FELs). We have developed a labo
ratory-scale ultrashort electron accelerator for investigating femtosecond
dynamics of atoms or molecules with pump-probe experiments. This system h
as four beamlines. Two of them are for ultrafast electron diffraction (UED
) experiments on solid and gas samples. The electron bunch duration at the
UED beamlines are designed to be ~30 fs in rms. Our target value of the t
iming jitter between pumping laser pulse and probing electron bunch is 10
fs. The UED beamlines can perform single-shot measurement with a temporal
accuracy less than 50 fs. As a pumping source\, we have developed a high-i
ntense terahertz pulse generator with the field strength of more than 0.5
MV/cm by using a femtosecond laser and a non-linear crystal. This small-sc
ale facility can be used for investigating time-resolved diffraction exper
iments with samples of gas\, liquid\, solid\, and surface. The application
experiments of the UED beamlines will be performed by the collaboration w
ith universities in Korea.\n\nhttps://indico.inp.nsk.su/event/3/contributi
ons/1314/
LOCATION:Budker INP Parallel session Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1314/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Status and Perspectives of Compton Sources
DTSTART;VALUE=DATE-TIME:20160704T093000Z
DTEND;VALUE=DATE-TIME:20160704T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1315@indico.inp.nsk.su
DESCRIPTION:Speakers: Ryoichi Hajima (National Institutes for Quantum and
Radiological Science and Technology)\nGeneration of high-energy photons vi
a collision of relativistic\nelectron and laser beams is known as inverse
Compton scattering\nor laser Compton scattering.\nCompton sources\, photon
sources based on Compton scattering\,\nhave been developed in the world \
nto realize high-flux/high-brightness X-ray/gamma-ray sources\nand exploit
applications with energy-tunable and narrow-bandwidth photon\nbeams from
these sources.\nRecent progress of electron accelerator and laser technolo
gies\nwill open a new era in Compton sources.\nAn electron beam of small e
mittance and high-average current contributes\nto improving spectral brigh
tness of Compton scattered photons.\nFlux of generating photons is also in
creased by a high-power \nlaser together with apparatus such as laser enha
ncement cavity.\nWe overview the current status of Compton sources includi
ng an\nexperiment carried out at the Compact ERL\, which was the first\nde
monstration of Compton scattering by combination of an energy-recovery\nli
nac and a laser enhancement cavity.\nFuture prospect of Compton sources an
d their applications\nis also discussed.\n\nhttps://indico.inp.nsk.su/even
t/3/contributions/1315/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1315/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The MAX IV Accelerator Facility\, concept\, status and perspective
s
DTSTART;VALUE=DATE-TIME:20160704T024000Z
DTEND;VALUE=DATE-TIME:20160704T032000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1316@indico.inp.nsk.su
DESCRIPTION:Speakers: Mikael Eriksson (MAX IV Laboratory)\nThe MAX IV stor
age ring in Lund\, Sweden\, is the first Multi Bend Achromat (MBA) SR sour
ce going into operation. This report describes the MAX IV concept\, techni
cal solutions and commissioning status. Finally\, an international overvie
w of some of the MBA projects being constructed or planned is given.\n\nht
tps://indico.inp.nsk.su/event/3/contributions/1316/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1316/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Performance and characterisation of CsI:Tl thin films for X-ray im
aging application
DTSTART;VALUE=DATE-TIME:20160707T094000Z
DTEND;VALUE=DATE-TIME:20160707T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1317@indico.inp.nsk.su
DESCRIPTION:Speakers: evgeny kozyrev (binp)\nWe developed method of thin s
cintillator films preparation based on thermal CsI(Tl) deposition on glass
substrates. The influence of deposition conditions on the micro columnar
structure and crystalline property of the films was studied by scattering
electron microscopy. The element composition was investigated by X-ray flu
orescence method. We measured light output and spacial resolution as a fun
ction of input photons energy (5-35 keV) and film thickness (2-20 mkm). It
was observed the strong anti-correlations between the time of CsI(Tl) dep
osition\, film light output and thallium concentration. The films can be u
sed for charged particles beams monitoring as well as for X-ray imaging ap
plications including micro tomography and topography.\n\nhttps://indico.in
p.nsk.su/event/3/contributions/1317/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1317/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Upgrade of the detector for imaging of explosions.
DTSTART;VALUE=DATE-TIME:20160706T050000Z
DTEND;VALUE=DATE-TIME:20160706T052000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1318@indico.inp.nsk.su
DESCRIPTION:Speakers: Lev Shekhtman (Budker Institute of Nuclear Physics)\
nMethods of dynamic imaging of explosions at a synchrotron radiation (SR)
beam and small-angle X-ray scattering experiments with exploding samples a
re being developed in the Siberian Synchrotron Radiation Center (SSRC) at
the Budker Institute of Nuclear Physics for more than fifteen years. The
detector for imaging of explosions (DIMEX) was developed for these purpose
s and successfully operating at the beam line 0 at the VEPP-3 storage ring
and at the beam line 8 at the VEPP-4M storage ring. The DIMEX is based on
gas technology and allow to measure SR flux as a function of position and
time with spatial resolution of $\\sim$200 $\\mu$m (FWHM)\, maximum frame
rate of 2 MHz and time resolution of $\\sim$80 ns. Maximum value of the
SR flux that can be measured by the present detector corresponds to $\\sim
$5000 photons/(channel*bunch) (20 keV average energy\, channel area 0.1x0.
5 mm$^2$\, bunch revolution frequency 4 MHz). Maximum number of frames th
at can be stored in the present detector is 32 and the number of channels
with 0.1 mm width is 512. \n\nIn order to significantly improve the preci
sion of data obtained by the DIMEX an upgrade of the detector has been sta
rted. The electronics of the gaseous version of the detector has been chan
ged such that the new detector is able to operate with frame rate of 8 MHz
and store data in up to 100 frames. A new ASIC was developed for this pur
pose called DMXG64A that includes 64 channels with low noise integrator an
d 100 analogue memory cells in each channel. Input charge can be stored to
and read out from analogue cells with maximum frequency of 10 MHz. The ot
her parameters such as maximum measured SR flux\, spatial and time resolut
ions are stay the same as in the old DIMEX. This new version of the detect
or is called the DIMEX-G and is planned to be used at the VEPP-3 storage r
ing and for SAXS studies at the VEPP-4M storage ring.\n\nFor imaging of ex
plosions at the beam line 8 at the VEPP-4M storage ring\, where SR flux is
expected to be about 100 times higher than at the VEPP-3\, a new detector
based on Si micro-strip technology is being developed. Si micro-strip sen
sors with special design in order to be able to measure very high X-ray fl
ux\, are manufactured for us by Hamamatsu Photonics company. Each sensor c
ontains 1024 30mm long strips with 50 $\\mu$m pitch. The sensor thickness
is 300 $\\mu$m and it will be positioned at an angle of 1.7 degrees with r
espect to the SR beam plane in order to get effective Si thickness along t
he beam close to 10 mm. The new detector called DIMEX-Si will have spatial
resolution of 50 $\\mu$m (FWHM) and time resolution close to 10 ns. The n
ew ASIC is under development for this project that will allow to operate w
ith the frame rate of 50 MHz and record maximum charge that corresponds to
the flux close to 10$^6$ photons/(chan*bunch)\, i.e. about 100 times high
er than with present detector.\n\nhttps://indico.inp.nsk.su/event/3/contri
butions/1318/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1318/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Multifunctional X-ray lithography station at VEPP-3
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1319@indico.inp.nsk.su
DESCRIPTION:Speakers: Boris Goldenberg (Budker INP SB RAS)\nThe multifunct
ional station “LIGA” at synchrotron radiation source VEPP-3 is part of
shared-usage "Siberian Center for Synchrotron and Terahertz Radiation" in
frastructure. The apparatus used for X-ray lithography are usable for samp
les with size in range from 1 to 10 cm and resist layers thickness in rang
e 1 $\\mu$m to 7 mm. The development of processing methods and equipment o
f station is kept on. Present article deal with the capabilities of statio
n “LIGA” and samples of produced microstructures.\n\nhttps://indico.in
p.nsk.su/event/3/contributions/1319/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1319/
END:VEVENT
BEGIN:VEVENT
SUMMARY:A study of deposition of nanoscale intermediary Au-S species on ox
ide supports from aqueous solution using XAFS and TEM
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1320@indico.inp.nsk.su
DESCRIPTION:Speakers: Anton Karacharov (ICCT SB RAS)\nNanoscale products d
eposited on oxide supports at room temperature from 0.1 mM tetrachloroaura
te aqueous solutions and colloidal solutions (sols) of Au0 and gold sulfid
e nanoparticles\, which were prepared beforehand by the reduction of the A
u(III) complexes with sodium sulfide\, were studied using total electron y
ield X-ray absorption near edge structure spectroscopy (TEY XANES)\, exten
ded X-ray absorption fine structure spectroscopy (EXAFS)\, X-ray photoelec
tron spectroscopy (XPS) and transmission electron microscopy (TEM).\nIt wa
s found\, that intermediary species of the sulfide reduction (Na2S/HAuCl4
= 3) was deposited on metal oxides as disordered Au2S\, the surface of whi
ch tends to decompose yielding Au0NP’s with sulfur adlayer. This conclus
ion is supported by EXAFS\, which shows that in case of gold deposited ont
o α-Fe2O3 in similar conditions\, the average distance Au-S of the first
coordination sphere was 2\,32 Å\, and a coordination number was equal to
1.1\, i.e. gold was presented in a form disordered Au2S. According to TEY
XANES and XPS data\, the significant reduction or sulphidization of metal
oxides surfaces are not occur\, excepting CuO\, onto which surface a Cu(I)
sulfide was formed.\nFor freshly prepared solution with the Na2S/HAuCl4 r
atio of 3\, a linear correlation between the quantity of gold deposited an
d isoelectric point of the oxide surface was found implying that intermedi
ates bear a negative charge. The quantity of gold deposited from the inter
mediates solution of the citrate reduction of chloroaurate is lower\, than
from the final citrate sols and sulfidic sols\, and high relative concent
rations of oxidized forms of gold remain on substrates.\nSeveral metal oxi
des were decorated using the intermediates prepared with Na2S/HAuCl4 = 3.
The TEM images show mainly Au0 NP’s in the range 3-5 nm\, excepting CuO
where ≈10 nm NP’s were observed.\n\nhttps://indico.inp.nsk.su/event/3/
contributions/1320/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1320/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dynamics of nanoparticles sizes during trinitrotoluene detonation
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1321@indico.inp.nsk.su
DESCRIPTION:Speakers: Ivan Rubtsov (Lavrentyev Institute of Hydrodynamics
of the Siberian Branch of the Russian Academy of Sciences)\nIn this work w
e carried out our experiments on measuring small angle x-ray scattering (S
AXS) during trinitrotoluene detonation. Registration of SAXS signal at det
onation of high explosives (HE) allows to measure fluctuation of density\,
which are connected with process of carbon condensation. Here we present
dynamics of particles sizes during detonation of cast trinitrotoluene char
ge in diameter of 40 mm.\n\nWe also carried out SAXS calculation with real
spectrum (which consist of the viggler radiation\, TNT absorption and the
DIMEX-3 detector absorption). Our calculation shown that average sizes of
nanodiamonds behind the detonation front could be restored from measured
data on pink SR beam SAXS distribution.\n\nOur experiments with using sync
hrotron radiation were made on SYRAFEEMA (Synchrotron Radiation Facility f
or Exploring Energetic Materials) station at the accelerating complex VEPP
-4M (Budker Institute of Nuclear Physics). This new station allowed to inc
rease the mass of the studied charges up to 200 grams in comparison with s
imilar station “Extreme states of matter” at the accelerating complex
VEPP-3.\n\nhttps://indico.inp.nsk.su/event/3/contributions/1321/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1321/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Study of Electronic Structure and Magnetic Properties of Manganese
Sulfide Solid Solutions Doped With Rare Earth Elements
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1322@indico.inp.nsk.su
DESCRIPTION:Speakers: Evgeniy Korotaev (Nikolaev Institute of Inorganic Ch
emistry of the Siberian Branch of the Russian Academy of Sciences)\nSolid
solution containing chemical rare-earth elements (such as Yb or Tm) have
a number of unique properties\, which is commonly undergo a phase transiti
ons having a purely electron nature and related with the change in filling
of 4f electron levels [1\, 2] along with magnetic–nonmagnetic state tra
nsitions [3]. These systems are also possess thermoelectric properties. In
vention of a highly efficient thermoelectric materials is one of the impor
tant direction of modern materials science. One of the directions on findi
ng of new thermoelectric materials is the study of systems\, in which met
al-dielectric transition is observed. The systems of such kind could be so
lid solutions based on the transition metal sulfides Mn1-xMxS (M=Cu\, Fe\,
Co) and possess high values specific of thermoelectric power [4-5].\n
Electrophysical properties of such functional matrials is primarily deter
mined by features of its electronic structure. In this regard\, current wo
rk involves a comprehensive study of the iterlelationship between electron
ic structure and magnetic properties (i.e. magnetic suspetibility) of the
Mn1-xLnxS (Ln=Dy\, Tm\, Yb\; x=0\;0.01\;0.05). X-ray emission spectra (XES
) provides information about the electronic structure of valance band. Х-
ray absorption near edge spectroscopy (XANES) provides information about c
onduction band electronic structure (K-absorbtion spectra of Mn\, S\; L-sp
ectra of lanthanides). Measurement of the chemical shifts of (Mn\, S)Kα1\
,2-lines and ratio of MnLα1\,2-\,Lβ- emission spectra allows to determin
e the charge and the electron density of metal and sulfur atoms in investi
gated solid solutions. In order to investigate electronic structure XAS an
d XES spectra figured in unified energy scale. Experemental spectra were c
ompared with quantum chemical calculations in the FDMNES and ADF BAND soft
ware packages.\n\n[1] S. S. Aplesnin\, O. B. Romanova\, A. M. Kharkov\, A.
I. Galyas\, 2015\, Phys. Solid State 57 (5)\, 886.\n[2] S. S. Aplesnin\,
A. M. Harkov\, E. V. Eremin\, O. B. Romanova\, D. A. Balalev\, V. V. Sokol
ov\, and A. Yu. Pichugin\,IEEE Trans. Magn. 47\, 4413 (2011).\n[3] D. I. K
homskii\, Sov. Phys.—Usp. 22 (10)\, 879 (1979).\n[4] S.S. Aplesnin\, O.B
. Romanova\, A.I. Galyas\, V.V. Sokolov\, 2016\, Phys. of Sol. State\, 201
6\, Vol. 58\, No. 1\, pp. 21–26. \n[5] Abramova G.M. Vorotynov A.M.\, Pe
trakovskii G.A. et al. // Phys. of Sol. State\, 2004\, vol.46\, n. 12\, p.
2225. \n[6] G. I. Makovetski \, A. I. Galyas\, O. F. Demidenko et al. // P
hys. of Sol. State\, 2008\, vol.50\, n. 10\, p.1826.\n\nhttps://indico.inp
.nsk.su/event/3/contributions/1322/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1322/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Structural phase transformations study of brittle refractory metal
s and intermetallics with L12 structure using synchrotron radiation
DTSTART;VALUE=DATE-TIME:20160706T074000Z
DTEND;VALUE=DATE-TIME:20160706T080000Z
DTSTAMP;VALUE=DATE-TIME:20260313T103313Z
UID:indico-contribution-3-1323@indico.inp.nsk.su
DESCRIPTION:Speakers: Vitaliy Pilyugin (M.N. Mikheev Institute of Metal Ph
ysics of the Ural Branch of the Russian Academy of Sciences (IMP UB RAS))\
nAfter severe plastic deformation under the high pressure torsion techniqu
e a number of brittle refractory metals such as Mo\, W\, Re and Ni3Ge inte
rmetallic compound with L12\nstructure have been investigated. These studi
es are of great interest\, since the effects of shear deformation under hi
gh pressure have not been previously studied on these materials. In all ca
ses the grain refinement caused by dislocations mobility has been observed
. The Ni3Ge demonstrates the decrease of the degree of the long-range orde
r after large plastic strain. Synchrotron radiation source has been used i
n order to determine the level of internal stresses\, crystallite size and
other parameters of the plastically deformed materials. The models of the
influence of the mobility of dislocations to crystallite size and fractur
e surfaces have been considered.\n\n*The reported study was partially fund
ed by RFBR according to the research project No. 16-03-00182-а and was ca
rried out within state assignment of FASO of Russia (theme “Deformation
” No. 01201463327)*\n\nhttps://indico.inp.nsk.su/event/3/contributions/1
323/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/3/contributions/1323/
END:VEVENT
END:VCALENDAR