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Contribution List

Displaying 108 contributions out of 108
Type: Oral Track: SR and FEL sources and centers
More than twenty years ago the first compact THz FEL at KAERI has been commissioned. Since then a huge number of experiments using this FEL have been conducted. Also its parameters have been improved during this intensive operation. A number of user stations have been built at this machine. It operates now, but its resource is almost consumed and operation is not so stable. In this regard, a devel ... More
Presented by Prof. Sergey MIGINSKIY
Type: Oral Track: X-ray spectroscopy
Recently, a series of experimental findings which are difficult to understand within the frame of classical nucleation theory (CNT) have been established. In particular, a formation of extra-ordinary large-scale (in comparison with the size of classical nuclei) pre-nucleation species has been observed in a range of processes such as crystallization of calcium carbonate, calcium phosphate, silica g ... More
Presented by Dr. Maxim LIKHATSKIY
Type: Poster Track: X-ray spectroscopy
Nowadays, palladium supported on different carriers is one of the most intensively studied catalytic systems. Pd-based catalysts exhibit excellent activity in such important processes as hydrogenation of organic acids and oils, selective hydrogenation of acetylene to ethylene, oxidation of methane and carbon monoxide, etc. An enhancement of catalytic properties is achieved by using Pd-based bimeta ... More
Presented by Anna TSAPINA
Type: Oral Track: X-ray structural analysis
Solutions of SiO$_2$ nanoparticles (with typical diameter of 5--25 nm) in water stabilized by a small amount of alkali ions --- known as silica sols --- exhibit strong gradient of the surface potential at the sol/air interface. It has been shown previously that under such boundary conditions charged silica nanoparticles ($Q\sim 1000$ $\bar e$) form a macroscopically flat layer near the surface, i ... More
Presented by Yuriy VOLKOV
Type: Poster Track: X-ray fluorescent analysis
Samples of modern bottom sediments of Lake Shira (Khakassia) was obtained in the form of frozen bulk contained the upper 20cm of bottom sediments using special sampling equipment (ice-corer). This procedure guaranteed the receiving of the unmixed and undamaged upper sediment layers. The preparation of solid samples for measurements was carried out by a vacuum drying technique and impregnated with ... More
Presented by Mr. Fedor DARIN
Type: Poster Track: SR technological application and X-ray apparatus
The use of algebraic approaches with regularization terms in tomography can improve the quality of images with a low signal-to-noise ratio. Also they work well if the object under investigation contains highly absorbing inclusions or the measurement conditions are unstable during the measurement time. They win in competition of reconstruction techniques with a limited number of projections. Then w ... More
Presented by Dr. Marina CHUKALINA
Type: Oral Track: SR for medicine and biology application
Cholelithiasis is characterized by the appearance and growth of stones in the gallbladder. Nowadays gallbladder disease comes to the first place among pathology of a digestive tract. It tends to grow steadily and is to be relevant in gastroenterology. Despite the fact that there are many attempts to use computed tomography techniques for the practical diagnosis of gallbladder stones, the problem o ... More
Presented by Mr. Yuri KRIVONOSOV
Type: Oral Track: X-ray spectroscopy
The compounds of fluorinated few-layered graphene are of great research interest as promising materials in nanoelectronics, optoelectronics, sensorics, and catalysis. The study of the electronic structure makes it possible to reveal the relationship between the structural features and the physicochemical properties of the compounds. X-ray absorption spectroscopy (XAS) and X-ray photoelectron spect ... More
Presented by Dr. Igor ASANOV
Type: Oral Track: X-ray structural analysis
Additive manufacturing of titanium alloys is an advance and intensively developing field of modern material science due to the wide application of titanium alloys in various industries. One of the important and interesting aspects of the study of additive materials is the establishment of regularities in the interaction of hydrogen with titanium alloys produced by the method of electron beam melti ... More
Presented by Dr. Viktor KUDIIAROV
Type: Poster Track: SR technological application and X-ray apparatus
Beryllium is an important material for a wide range of scientific applications due to its unique properties. Because of its low atomic number and very low absorption for X-rays, beryllium is widely used for windows of X-ray tubes and synchrotron sources, detectors and as sample holders for special X-ray spectroscopy applications. It is the best material for X-ray refractive optics, which is extens ... More
Presented by Mr. Ivan LYATUN
Type: Poster Track: SR technological application and X-ray apparatus
The powerful free electron laser of the Siberian center for photochemical research consists of an injector, an accelerator RF structure, one vertical and four horizontal paths, and dump. The 1st stage of the FEL has one vertical track, the electron energy up to 12 MeV. 2nd FEL has two horizontal tracks on the 1st track of the electron energy 10 MeV . On the 2nd track energy is equal to 20 MeV. ... More
Presented by Dr. Tatiana SALIKOVA
Type: Poster Track: THz radiation aplication
Beams of photons with an orbital angular momentum (or vortex beams) are of interest both for fundamental physics and for various applications. In the visible range, there are many ways to generate such beams, for example, using spatial light modulators (SPM). In the terahertz frequency range, for which SPM has not yet been developed, diffractive optical elements (DOEs) remain one of the most effec ... More
Presented by Mr. Oleg KAMESHKOV
Type: Poster Track: X-ray spectroscopy
Electrodeposited films of polypyrrole are widely used in many technological applications, including anticorrosive protection of metal and steels [1]. It is known that the protective effect of coatings can be significantly improved by doping the polymer with alkyl sulfates or alkyl sulfonates, for example, dodecyl sulfate anions [2]. In this work, polypyrrole films were grown by electropolymerizati ... More
Presented by Dr. Alena MARATKANOVA
Type: Poster Track: THz radiation aplication
V.L. Bratman (1,2), A.E. Fedotov(1), Y.K. Kalynov(1), P.B. Makhalov(1), V.N. Manuilov(1,3), I.V. Osharin(1), and A.V. Savilov(1,3) (1) Institute of Applied Physics of Russian Academy of Sciences, Nizhny Novgorod, 603950 Russia (2) Ariel University, Ariel, Israel (3) Nizhny Novgorod State University, Nizhny Novgorod, Russia Nuclear magnetic resonance (NMR), which is along with X-ray crystal ... More
Presented by Prof. Andrei SAVILOV
Type: Poster Track: SR and FEL sources and centers
Free-electron lasers (FELs) have a key advantage over other types of lasers: the possibility of an operative and smooth tuning of the wavelength of monochromatic radiation. However, this process causes changing of the focusing strength of the undulator and, consequently, requires the matching of the rest of the FEL magnetic system. As a solution to this problem, two approaches were proposed: 1) co ... More
Presented by Anton MATVEEV
Type: Poster Track: SR and FEL sources and centers
We propose simple method to modulate output radiation power in FEL oscillator which allows to adjust smoothly the average radiation power as well as to obtain short (down to 35 microseconds) radiation macrobunches. This method is based on periodic shift of electron bunch phase with respect to FEL radiation bunch stored in optical cavity which results in lasing suppression. The phase shift frequenc ... More
Presented by Dr. Tatiana SALIKOVA
Type: Oral Track: SR and FEL sources and centers
The recent development of low-emittance storage rings promises particular benefits for techniques that require tightly focused and brilliant beams of synchrotron radiation, such as XRF/XRD/XAS micro- and nanomapping, high-pressure research *etc.* The "MicroFocus" beamline was designed to use all benefits of low-emittance storage ring enhanced by modern refractive X-ray optics, and provide a 'multi ... More
Presented by Dr. Sergey RASHCHENKO
Type: Poster Track: THz radiation aplication
Theory of acousto-optic (AO) diffraction of a long wavelength radiation have to take into account divergence of a light beam upon propagation. The effect of a light beam divergence is especially strong in terahertz (THz) range. In this spectral range the most suitable AO media are absorbing and it's light absorption coefficient is about 1 1/cm. Theory of AO interaction taking into account divergen ... More
Presented by Mr. Pavel NIKITIN
Type: Poster Track: SR and FEL sources and centers
New undulator for the first stage of Novosibirsk free electron laser (FEL) was developed. Installation of the new undulator will significantly increase radiation tuning range of the first stage FEL due to its features, among them are possibility to vary period of the undulator continuously, possibility to change number of periods and small period to aperture ratio. Mechanical construction is descr ... More
Presented by Mr. IGOR DAVIDYUK
Type: Oral Track: SR technological application and X-ray apparatus
Development of the method for time-resolved controlling of x-ray beam parameters by several modes of longwave vibration (longitudinal or bending) will be represented. We suppose that both modes could be useful to provide timeresolved x-ray study. In case of longitudinal vibrations, diffraction conditions changes by modulation of lattice parameters with tension-compression regular deformations. In ... More
Presented by Anton TARGONSKIY
Type: Oral Track: SR technological application and X-ray apparatus
Nowadays X-ray microtomography is convenient and widely used tool for scientists in laboratory and synchrotron sources. In this work, we show our progress in development of laboratory X-ray microtomography setups. Using X-ray optical elements (bubble lenses and asymmetrically cut crystals) allows us to reach spatial resolution up to 1 um at field of view about 1 mm. Without optical elements, spati ... More
Presented by Dr. Alexey BUZMAKOV
Type: Oral Track: SR and FEL sources and centers
Khegay A.G.(1), Ershov P.A.(1), , Polikarpov M.V.(2), Snigireva I.I.(2), Snigirev A.A.(1) 1) Immanuel Kant Baltic Federal University, str. Nevskogo 14, 236041 Kaliningrad, Russia 2) European Synchrotron Radiation Facility, 38043 Grenoble, France Email: khegay.art@gmail.com Recently, the creation of new technologies in the physics of particle accelerators led to a sharp increase in max ... More
Presented by Mr. Artem KHEGAY
Type: Poster Track: THz radiation aplication
A Bessel beam with orbital angular momentum, or vortex beam, can be generated using diffraction from an axicon with spiral zones. In this case the Bessel function of the beam doesn’t depend on the wavelength of generation and is determined by the topological charge only. Hence, for vortex beam generation with a tunable radiation source, as the Novosibirsk free electron laser (NovoFEL), a diffrac ... More
Presented by Ms. Natalya OSINTSEVA
Type: Oral Track: X-ray structural analysis
The normal operation of fusion reactor based on tokamak involves periodical transient heat loads to divertor plates. The currently the divertor plates of ITER is supposed to be covered by tungsten. The tungsten tends to cracking as a result of the pulsed heating. The reasons of the crack formation are deformation and mechanical stresses caused by the raise of temperature of thin surface layer. The ... More
Presented by Dr. Aleksey ARAKCHEEV
Type: Poster Track: SR for medicine and biology application
This study focuses on determination of element composition of plants belonging to different species of the genus Dasiphora (the Rosaceae family) occurring in East Siberia and the Russian Far East and on revel of species with high content of macro- and microelements. The plants of five species (D. fruticosa, D. parvifolia, D. mandshurica, D. gorovoii, D. davurica, and the variety D. davurica var. f ... More
Presented by Dr. Elena KHRAMOVA
Type: Poster Track: SR for medicine and biology application
A study has been first made of the element composition of both the plants of six species from three families, growing in the Mountain Altai and the soil samples from their habitat by method of X-ray fluorescence analysis using synchrotron radiation (SRXRF) at the station of element analysis of SCSTR of the Institute of Nuclear Physics SB RAS (VEPP-3 store ring). The material studied was represen ... More
Presented by Dr. Elena KHRAMOVA
Type: Poster Track: THz radiation aplication
The influence of terahertz radiation on the transport characteristics of serum albumin manifests itself as changes in bonding with biologically significant species, such as molecular oxygen and nitrogen oxide. Causing no rupture of covalent bonds, terahertz radiation may affect rotational and rovibrational transitions in biomolecules. To observe the effects of this kind, it is necessary to study t ... More
Presented by Mrs. Evgeniya NEMOVA
Type: Poster Track: SR and FEL sources and centers
The electron outcoupling scheme was proposed for the high power FELs with optical cavities to avoid the power limitation due to overheating of reflecting mirrors. For this purpose, the electron beam is prebunched while passing the first undulator along the optical axis and then is deflected by a small angle, directed to one of the next undulators and emits the high-power radiation. Electron outco ... More
Presented by Mr. Yaroslav GETMANOV
Type: Poster Track: X-ray spectroscopy
Hot plasma is formed at irradiation of matter by high intensity laser radiation with ultrashort pulse duration. This plasma is a bright source of continuous and characteristic x-ray radiation. Due to short luminescence time (~10 ps) and micrometer size of luminescence region (~10 um), such sources are applied in different sciences [1-3]. At a picosecond laser facility, experiments were conducted ... More
Presented by Dr. Denis VIKHLYAEV
Type: Poster Track: SR technological application and X-ray apparatus
The high degree of coherence, brightness and power of X-radiation from free-electron X-ray lasers (XFELs) and 4-generation synchrotron sources [1] requires the development of new X-ray optics capable of withstanding extreme thermal and radiation loads. Diamond has excellent optical properties for these X-ray sources: high temperature stability and chemical inertness, relatively low absorption of ... More
Presented by Ms. Polina MEDVEDSKAYA
Type: Poster Track: SR and FEL sources and centers
Experiments have been performed to suppress vertical oscillations of the synchrotron radiation (SR) beam of the VEPP-3 storage ring by introducing a fast feedback. These oscillations are caused both by current pulsations in the magnetic elements and by mechanical vibrations, and can not be suppressed by the existing beam stabilization system. In experiments, the beam position sensor which was a ... More
Presented by Dr. Mihail FEDOTOV
Track: X-ray structural analysis
Formation of catalytically active nanoparticles on surface of various supports. ------------------------------------------------------------------------ Ella M. MOROZ. Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia E-mail: emoroz@catalysis.ru Fine metal and oxide particles supported by various oxides are an important class of catalytic systems. The surface of oxide support ... More
Presented by Prof. Ella MOROZ
Type: Poster Track: THz radiation aplication
The present report describes a new phenomenon - short-term exposure of water with focused terahertz radiation of free electron laser leads to the formation of nanoparticle suspension (hydrosol). Composition of the particles formed corresponds to the material of containers used in the experiment. The present report is focused on the graphite hydrosol formation. High purity (99.5%) graphite electrod ... More
Presented by Dr. Alexander KOZLOV
Type: Oral Track: SR and FEL sources and centers
One of the key problems in realization of short-wavelength FELs is a small efficiency determined the so-called FEL parameter, which is typically ~0.001 for existing X-ray FELs. Evidently, a similar condition limits the spread in initial energy of particles forming the operating electron bunch. A well-known way for a significant increase in the FEL efficiency is the use of tapered undulator an ... More
Presented by Prof. Andrei SAVILOV
Type: Oral Track: SR technological application and X-ray apparatus
Detector for imaging of explosions (DIMEX) is successfully exploited at the Siberian Synchrotron Radiation Center for more than ten years. DIMEX can measure spatial distribution of SR after an exploding sample from individual bunches without mixing radiation from them. Recent upgrade of the gaseous version of the detector with custom ASIC DMXG64 allowed to increase the number of stored frames in ... More
Presented by Mr. Lev SHEKHTMAN
Type: Poster Track: THz radiation aplication
Perfect THz absorption has attracted increasing research interest in recent years due to the potential applications in photo-detectors [1]. Here we present the high efficient broadband THz absorber, which is a low-resistance silicon plate with a 3-level structure formed on one side. Since low-resistance silicon has a high absorption in the THz range, it was decided to use it as a THz absorber. To ... More
Presented by Prof. Vladimir PAVELYEV
Type: Poster Track: X-ray structural analysis
Aluminum powders, due to their high specific heat of combustion, are widely used in explosive, the production of high-energy combustible mixtures and solid fuels for rocket engines. To solve the problem of high protective properties of oxide film on the surface of metal particles, in recent years much attention is paid to the development of methods for the activation of Al powders and the optimiza ... More
Presented by Mr. Danil ESELEVICH
Track: SR technological application and X-ray apparatus
INSTRUMENTAL AND METHODOLOGICAL PROVISION FOR STRUCTURAL SAXS/WAXS STUDIES OF BIOLOGICAL NANOSYSTEMS USING SYNCHROTRON RADIATION V.N.Korneev1), V.A.Shlektarev2), A.V.Zabelin3), N.F.Lanina2), B.P.Tolochko4), A.A.Vazina2) 1) Institute of Cell Biophysics, RAS, Pushchino, Russia 2) Institute of Theoretical and Experimental Biophysics, RAS, Pushchino, Russia 3) National Research Centre Kurchato ... More
Presented by Dr. Vladimir KORNEEV
Type: Oral Track: X-ray spectroscopy
Keywords: In situ XAS, operando XRD, CuFeAl-composite catalysts, CO oxidation, catalytic combustion. Catalytic oxidation of gasification products of solid fuels is allows utilizing low-grade fuels such as lignite, peat, and firewood as well as various industrial wastes. At the same time catalytic combustion produces a significantly lower amount of harmful emissions then “traditional combustio ... More
Presented by Dr. Andrey SARAEV
Type: Oral Track: X-ray spectroscopy
The complex of X-ray photoelectron analysis methods (XPS and NEXAFS) were used to investigate the structure, composition, number and type of functional groups, the density of electron states near the Fermi level of multi-walled carbon nanotubes (MWCNTs), which were nitrogen doped and modified with ionic and thermal treatments. On the basis of experimental data on the density of electronic states n ... More
Presented by Dr. Petr KORUSENKO
Type: Oral Track: SR and FEL sources and centers
Up to now free-electron lasers are much powerful generators in THz-band able to operate at multi-megawatt power level. Such devices are driven by relativistic electron beams (REBs) of ~ 5 - 10 MeV oscillating in magnetostatic undulators and, thus, are rather bulky and costly. At the same time, generation of powerful THz radiation can be realized when using moderately-relativistic (0.5 - 1.5 MeV) h ... More
Presented by Prof. Nikolai PESKOV
Type: Poster Track: X-ray spectroscopy
Transition metals disulfides are currently being actively studied due to their interesting physicochemical properties. Modification of these compounds by doping atoms makes it possible to obtain materials with the necessary electronic properties. In particular, molybdenum disulphide is promising for use in such areas as catalysis [1], transistors fabrication [2], production of lithium-ion batterie ... More
Presented by Svetlana DALMATOVA
Type: Poster Track: X-ray fluorescent analysis
Models of the annual cycle of sedimentation in glacial lakes are necessary for constructing paleoclimatic reconstructions with high time resolution. Samples of bottom sediments of two glacial lakes - Donguz-Oron (Caucasus) and Kucherlinskoye (Altai) - were studied for obtaining the necessary information. The bottom sediments cores were received during field work using special samplers (box-corer). ... More
Presented by Mr. Fedor DARIN
Track: X-ray spectroscopy
Conductive polymers are used in practice as materials for electrochemical devices (batteries, fuel cells, supercapacitors), anticorrosive protective coatings and electromagnetic radiation protective layers. The properties of such materials depend on not only chemical structure of the polymer, but also on the spatial arrangement of the chains being charge conductors. But the spatial arrangement of ... More
Presented by Dr. Alexander SYUGAEV
Type: Poster Track: THz radiation aplication
Morphological changes in M.Wistar skeletal musculature, caused by focused radiation of the first stage of the Novosibirsk FEL, are considered. Optical and electron microscopy investigations of the prepared samples were performed. The aim of the study was determination of the specific changes to the tissue in comparison with CO2 laser irradiation. Detailed morphological description and possible cau ... More
Presented by Mr. Evgeny ZELENTSOV
Type: Poster Track: THz radiation aplication
The purpose of this study was to assess the effect of terahertz radiation on the erythrocytes of healthy volunteers. Exposure of the prepared samples was carried out by non-focused radiation of the Novosibirsk FEL at wavelengths of 130-200 μm with an average power density of 20 W / cm2. Samples were studied histologically by means of optical and atomic force microscope in tapping mode in native f ... More
Presented by Mr. Evgeny ZELENTSOV
Type: Poster Track: X-ray spectroscopy
Properties of hard x-rays from tantalum targets, irradiated by femtosecond laser, were investigated experimentally. During experiments, focal spot size have been varied from 3 um to 10 um, laser pulse intensity on target changed from 10^19 W/cm^2 to 10^20 W/cm^2. Two spectrometers based on gray filters methods were employed for investigation of hard x-ray yield. Spectrometer on image plates was a ... More
Presented by Mr. Pavel TOLSTOUKHOV
Type: Poster Track: X-ray structural analysis
In a fusion reactor plasma impacts the divertor as periodic heat pulses. These heat pulses cause residual plastic deformations and mechanical stresses in the divertor which leads to the divertor’s material being destroyed. Residual deformations and stresses can be relieved due to high temperature of the divertor which is caused by the constant flow of plasma. The relaxation of deformations and s ... More
Presented by Mr. Ilya BALASH
Type: Oral Track: X-ray structural analysis
For correct numerical interpretation of tomographic experiment i.e. estimation of objects attenuation coefficients it is important to obtain reconstruction of high quality which depends directly on methods of processing registered data during experiment. Data processing flow begins with its preparation for application of reconstruction algorithm. Necessary part of data processing contains subtract ... More
Presented by Mr. Anastasia INGACHEVA
Type: Oral Track: X-ray spectroscopy
Electric-field manipulation of ferromagnetism has the potential for developing a new generation of electric devices to resolve the power consumption and variability issues in today’s microelectronics industry. To date, in the scientific literature are few examples of the successful synthesis of self-assembled dilute magnetic Mn quantum dots with ferromagnetic order above room temperature. For t ... More
Presented by Dr. Simon ERENBURG
Type: Poster Track: SR technological application and X-ray apparatus
X-ray compound refractive lenses (CRL) with parabolic profile became standard components at beamlines of modern synchrotrons. They can be adapted to X-ray energies from 2 to 200 keV to conduct research by modifying their composition and number. In order to simplify alignment and positioning of lens assembly and to provide permanent energy and focal length tunability transfocators were proposed. Us ... More
Presented by Mr. Anton NARIKOVICH
Type: Poster Track: THz radiation aplication
Surface plasmon polaritons (SPPs) on a conducting surface can be generated not only by an external source (such as a free electron laser), but also by thermal fluctuations of the density of conduction electrons within the skin layer of a metal body. This type of SPPs is called thermally stimulated. TSPPs are a kind of evanescent surface electromagnetic waves, which is inherently nonradiative, but ... More
Presented by Mr. Ildus KHASANOV
Type: Oral Track: SR technological application and X-ray apparatus
Owing to the high peak and integral reflection coefficients, multilayer interference mirrors (MIMs) have unique X-ray optical characteristics in the extreme ultraviolet (EUV) and X-ray wavelength range of 0.01-60 nm. On their basis, experimental a new generation nanolithographs for a wavelength of 13.5 nm, microscopes for the transparency windows of silicon (13 nm region), carbon (5-6 nm) and wate ... More
Presented by Dr. Nikolai CHKHALO
Type: Invited Oral Track: SR and FEL sources and centers
The Novosibirsk FEL facility has three FELs, installed on the first, second and fourth orbits of the ERL. The first FEL covers the wavelength range of 90 – 240 μm at an average radiation power of up to 0.5 kW with a pulse repetition rate of 5.6 or 11.2 MHz and a peak power of up to 1 MW. The second FEL operates in the range of 40 - 80 μm at an average radiation power of up to 0.5 kW with a pul ... More
Presented by Dr. Oleg SHEVCHENKO
Type: Poster Track: X-ray structural analysis
This work describes the results of the near-surface structural changes caused by the migration of oxygen vacancies in paratellurite (α-TeO2) single crystals obtained by the in situ X-ray diffraction technique under a constant electric field. This process has a reversible character [1] and its dynamics (duration is about tens of minutes) corresponds with the conductivity kinetics. When the elec ... More
Presented by Mr. Anton KULIKOV
Type: Poster Track: SR technological application and X-ray apparatus
Electron beam induced synchrotron radiation and kept near equilibrium orbit by strong electrical field of proton bunches changes focusing forces, which act on the proton beam and reduce the lifetime of protons. On this moment, a-C material coated on an inner chamber wall is the most perspective material for minimization of SEE. In the framework of the collaboration between BINP and CERN for FCC an ... More
Presented by Dr. Alexey SEMENOV
Type: Poster Track: X-ray structural analysis
Will be used new techniks.
Presented by Prof. Boris TOLOCHKO
Type: Invited Oral Track: THz radiation aplication
The mid-infrared and THz free-electron laser facility FELBE in Dresden, Germany, provides intense, nearly transform-limited picosecond pulses, which can also be combined with synchronous pico- or femtosecond pulses from near-infared tabletop lasers, thus providing unique research opportunities to advance our knowledge on the interaction of intense mid-infrared and THz fields with materials and de ... More
Presented by Dr. Harald SCHNEIDER
Type: Poster Track: X-ray structural analysis
The influence of pulsed heat load on the tungsten wall of the divertor in a fusion reactor is expected to cause cracks, which will lead to the appearance of plastic deformations. In order to understand how these deformations are formed, and how to avoid it, one has to measure their dynamics during a pulsed heat load. Currently, the diagnostic of the dynamic of such deformations based on the method ... More
Presented by Mr. Sergey KAZANTSEV
Type: Poster Track: X-ray structural analysis
The loss of stability of the homogenous plastic deformation of single crystal specimens of the Ni3Ge alloy was investigated under uniaxial constant-rate compressive loading. A phenomenon of high temperature strain superlocalization was observed. Plastic deformation in this case occurred in a band a few tens of microns wide, reaching the values of hundreds of percent. Using synchrotron radiation it ... More
Presented by Prof. Yulia SOLOV'EVA
Type: Invited Oral Track: SR and FEL sources and centers
A dielectric laser accelerator (DLA), operating at the optical frequencies with a pulse rate close to 1 GHz, is expected to generate high-energy nano-electron bunches with a moderate average current. The nano-electron bunch permits highly efficient electron superadiance in the EUV and x-ray spectrum. In this talk, I will compare the peak and average brilliance of envisioned DLA-driven radiation so ... More
Presented by Prof. Yen-Chieh HUANG
Type: Invited Oral Track: X-ray spectroscopy
Development of the third generation synchrotron radiation sources has boosted X-ray spectroscopy, as illustrated by the discovery of a variety of new experimental techniques associated with the exploitation of the polarisation properties of x-rays. The detection of X-ray magnetic linear and circular dichroism in ferro-, ferri- and paramagnetic systems, the discovery of X-ray natural circular dichr ... More
Presented by Dr. Andrei ROGALEV
Type: Poster Track: X-ray structural analysis
Experiments with single and double shock compression of the materials provide background for the development of equation of state (EOS) of the material under high pressure. Double compression compared to single compression provides smaller growth of the internal energy, the states that occur due to this phenomenon are observed below Hugoniot curve, approaching to isotherm. The fact helps to ... More
Presented by Mr. Evgenii SMIRNOV
Type: Poster Track: SR and FEL sources and centers
Nowadays development of compact and cheap sources of powerful and narrowband THz radiation is highly demanded in science and technology. One of the most perspective nonlinear medium allowing to generate electromagnetic waves in the terahertz frequency range is plasma. It doesn’t have damage thresholds and can sustain electromagnetic fields with extremely high amplitudes. However, potential oscil ... More
Presented by Mr. Vladimir ANNENKOV
Type: Oral Track: THz radiation aplication
Terahertz (THz) surface plasmons (SPs) can be effectively used in THz communication lines, information processing devices, spectroscopic measurements of submicron dielectric layers, and metal surface quality control. Such applications necessitate implementation of various optical schemes, including splitting of THz SPs on the guiding surface. This work is the first experimental demonstration of th ... More
Presented by Mr. Vasily GERASIMOV
Type: Invited Oral Track: SR and FEL sources and centers
An X-ray FEL Oscillator (XFELO), a low-gain device in which an X-ray pulse trapped in a X-ray cavity formed by Bragg crystals receives repeated FEL interaction will broaden the scientific vista for photon science of hard X-rays in areas requiring fully coherent and ultra-fine spectral bandwidth (BW). A 7-8 GeV super-conducting linear accelerator producing a constant stream of electron bunches is a ... More
Presented by Prof. Kwang-Je KIM
Type: Poster Track: THz radiation aplication
The detection mechanism of photoconductive detectors is the generation of free charge carriers upon absorption of photons whose energy is larger than the ionization energy. The relaxation of these carriers down to their ground state ultimately limits the speed of response as well as the sensitivity. A thorough understanding of the relaxation mechanism can help to improve the performance of detecto ... More
Presented by Ms. Valeria KUKOTENKO
Type: Oral Track: X-ray spectroscopy
Investigations of chemical processes in Chemistry have gain new opportunities thanks to Synchrotron Radiation Facilities allowing researchers to control and manage synthesis of inorganic compounds and new materials as well understand chemical reactions in details. One of the techniques for preparing nanoparticles (mono-, bi-, n-metallic) is a thermal decomposition of inorganic compounds such as mo ... More
Presented by Dr. Tatyana ASANOVA
Type: Oral Track: THz radiation aplication
Appearance of the sources of coherent and high power THz radiation [1] opened new horizons for investigations in this frequency range [2]. High attention is focused on silicon diffractive optical elements (DOE), which are used for the beam manipulation [3-6]. The lithographic etching of a silicon substrate has been used in [3, 4] to fabricate binary relief of diffractive optical elements. Lithogra ... More
Presented by Prof. Vladimir PAVELYEV
Type: Oral Track: X-ray spectroscopy
The interatomic Auger transitions in the presence of core electron levels with close energies are studied theoretically and experimentally. We show that the Coulomb transitions of holes between such levels lead to a resonance (in terms of the energy difference) enhancement of the Auger spectra. !http://yadi.sk/i/YWf_QF-p3UaX2w !https://yadi.sk/i/UgVO7wyP3UaW8k Figure 1. Diagram of the int ... More
Presented by Prof. Vladimir GREBENNIKOV
Type: Oral Track: X-ray spectroscopy
The electronic structure of CuIn1-xGaxSe2 single crystals has been determined by the method of resonant photoemission, and the main regularities of its transformation have been established with a change in the concentration x from 0 to 1. The dependence of the shape of the spectra of valence bands on photon energy has been studied. It is shown that the integrated intensities of photoemission are d ... More
Presented by Dr. Tatyana KUZNETSOVA, Prof. Vladimir GREBENNIKOV
Type: Poster Track: SR for medicine and biology application
SRXRF STUDY ON THE ECOLOGICAL STATE OF TECHNOTRONIC SURROUNDINGS IN THE NOVOSIBIRSK REGION Sedelnikova L.L.1, Khramova E.P.1, Chankina O.V.2, Rakshun Ya.V.3, Sorokoletov D.S.3 1Central Suberian Botanical Gardens, SB RAS, Russia, Novosibirsk 2Voevodsky Institute of Chemical Kinetics and Combustion, SB RAS, Russia, Novosibirsk 3Budker Institute of Nuclear Physics, SB RAS, Russia, Novosibirsk ... More
Presented by Dr. Ludmila SEDELNIKOVA
Type: Invited Oral Track: SR and FEL sources and centers
In SSRF beam line phase II project there are 16 beam lines will be built. Besides, the storage ring will be improved. Two of the cells will be modified by using superbends to create two short straight sections. Two long straight sections will modified to double mini beta_y function lattice by adding a triplet in the middle for each. Also a superconducting 3rd harmonic cavity will be added to lengt ... More
Presented by Prof. Bocheng JIANG
Type: Poster Track: X-ray fluorescent analysis
The first results of the investigation of microparticles of the Sikhote-Alin iron meteorite are shown. Measurements was carrying out on experimental module X-ray Confocal Microscopy [1] situated on NRC “Kurchatov Institute”. The experimental parameters are excitation energy 20 keV, the size of the excitation radiation spot on the sample is 15 μm, the scanning step is 20 μm, the measurement t ... More
Presented by Mr. Fedor DARIN
Type: Oral Track: SR technological application and X-ray apparatus
The development of high-resolution angular resolved photoelectron spectroscopy (ARPES) and recent discovery of new quantum matter such as topological materials and Rashba systems with their peculiar spin-texture of the surface states stimulate to develop high-performance Spin-resolved ARPES (SARPES). Recent high-resolution radiation synchrotron sources and the newly developed high performance spi ... More
Presented by Dr. Oleg TERESHCHENKO
Type: Oral Track: SR and FEL sources and centers
Laser-driven photo-injectors allow formation of compact and accessible sources of dense electron bunches with a moderate energy of 3-6 MeV, picosecond pulse durations, and charges of up to 1 nC and even greater. These bunches can be used for realization of relatively simple and compact terahertz sources operating in the regime of spontaneous coherent radiation. This type of radiation is realized, ... More
Presented by Yulia OPARINA
Track: X-ray structural analysis
The global cycle of major volatiles such as H2O and CO2 remains among the key topics of modern petrology. In particular, active interest is taken in water recycling associated with subduction of oceanic plates into the mantle. Mineral serpentine, Mg3Si2O5(OH)4, is shown to be the main water reservoir in oceanic litosphere [1], and therefore its dehydration produces a large impact onto seismic acti ... More
Presented by Dr. Anna LIKHACHEVA
Type: Invited Oral Track: SR and FEL sources and centers
The FELBE User Facility at the ELBE Center for High Power Radiation Sources offers two FELs dedicated to optical studies of materials over a wide range of the THz and IR spectrum (1.2 – 60 THz / 5 – 250 μm). Driven by a CW SRF linac, the FELBE FELs deliver beam at 13 MHz to a suite of eight User Labs. The high rep. rate CW operation provides high average power as well as outstanding data st ... More
Presented by Dr. J. Michael KLOPF
Type: Oral Track: X-ray spectroscopy
Using the XPS and NEXAFS methods, as well as SEM and TEM, the structure of composites based on multilayer carbon nanotubes (MWNT) and tin oxides (SnOx / MWNT) and titanium (TiOx / MWNT) obtained using magnetron sputtering was studied. The obtained data showed that the formation of composites by this method provides high adhesion of metal oxides to the MWNT surface due to the formation of chemical ... More
Presented by Mr. Sergey NESOV
Type: Poster Track: SR technological application and X-ray apparatus
Systematic measurements of main parameters of the detectors for imaging of explosions DIMEX-G and DIMEX-Si are described. DQE, spatial resolution and timing parameters are assessed. The methods of DQE and spatial resolution measurements are described in details and sources of systematic errors are determined. Parameters of the gaseous and Si versions of the DIMEX are compared.
Presented by Mr. Dmitry KUDASHKIN
Type: Poster Track: SR and FEL sources and centers
The Dortmund Electron Accelerator (DELTA, Germany) operated as 1.5 GeV synchrotron radiation source requires a superconducting wiggler as an insertion device for three x-ray beamlines with photon energies up to more than 30 keV. The beamlines are separated each by 15 mrad from the central one and each beamline uses a horizontal aperture of 5 mrad. To meet these requirements the insertion device mu ... More
Presented by Dr. Vitaliy SHKARUBA
Type: Poster Track: SR technological application and X-ray apparatus
Metrological synchrotron radiation station “Cosmos” is functioning in the Siberian Centre of Synchrotron Radiation. The purpose of the station is the development and implementation of metrology methods in the soft X-ray (80 – 5000 eV) and vacuum ultraviolet (4 – 100 eV) ranges. In order to provide such a wide spectral range the station has two monochromators, which use multilayer mirrors, ... More
Presented by Dr. Anton NIKOLENKO
Type: Poster Track: X-ray spectroscopy
High-energy ball milling of metals in organic media makes it possible to modify the chemical composition of both the surface and the bulk of particles, including modification by chemically inert substances. As-modified particles may be potentially used for various composite materials, for example, microwave absorbing magnetodielectric composites. In this work, synchrotron radiation study of iron p ... More
Presented by Dr. Alexander SYUGAEV
Type: Oral Track: SR and FEL sources and centers
Laser-driven photo-injectors are capable to form very compact and dense electron bunches with a particles energy of 3-6 MeV, picosecond and subpicosecond duration, and charge of the order of 1 nC. When moving in the periodic field of the undulator with a period of a few centimeters, such bunches can generate coherent radiation in the terahertz range. The power and duration of such a generation is ... More
Presented by Prof. Andrei SAVILOV
Type: Poster Track: THz radiation aplication
I.V. Bandurkin, Yu.K. Kalynov, Yu.S. Oparina, I.V. Osharin, A.V. Savilov, and N.A.Zavolsky The conventional low-harmonic gyrotrons operating in the terahertz frequency range require very strong magnetic fields. The fields can be decreased by using high-cyclotron harmonic operation of the gyrotron performed in the configuration of the so-called large-orbit gyrotron (LOG) with an axis-encircli ... More
Presented by Prof. Andrei SAVILOV
Type: Poster Track: THz radiation aplication
Using of structures on which multipole localized surface plasmon resonances can be excited is promising for the developing of terahertz (THz) biosensors. In this paper, the surface plasmon resonances on corrugated metal disks in conjunction with a C-shaped resonator in the THz range using numerical simulations have been studied. The parameters of the structures for which THz multipole resonances a ... More
Presented by Ms. Vladislava BULGAKOVA
Type: Invited Oral Track: THz radiation aplication
The commissioning of coherent high-power sources of THz radiation [1] generated a need for optical elements to control this radiation. Optical elements for terahertz waves are somewhat different from the classical optical elements. In the case of high-power radiation, which damages conventional plastic lenses like polypropylene or TPX ones, the use of silicon diffractive optical elements (DOEs) so ... More
Presented by Prof. Vladimir PAVELYEV
Type: Poster Track: THz radiation aplication
This project is related to new spectroscopy method in little-developed THz range. The method is founded on using of a free electron laser with high spectral power radiation which can be smoothly tuned in desirable range of spectrum. The objects of research of this method are fast processes in physics, chemical and biological reactions. Uniform magnetic field of 6 T value in the research area can c ... More
Presented by Dr. Alexey BRAGIN
Type: Poster
During the detonation of oxygen-deficient high-explosive nano-sized condensed carbon particles are formed. Studiing of the carbon condensation process is necessary to verify the equation of state of the explosion products. In this work, we carry out the dynamic measurement of small-angle x-ray scattering (SAXS) during the detonation of molten charges of TNT–RDX of different diameter. The dyna ... More
Presented by Ivan RUBTSOV
Type: Oral Track: THz radiation aplication
Hydroxyl radical OH is the main oxidizing agent in combustion processes and in atmospheric chemistry. The rotational spectrum of OH is comparatively simple - there are less than 10 absorption lines in the therahertz region, corresponding to transitions between the lower rotational states of the radical. The FID signal was observed at the OH absorption line at 83.8 cm-1, that corresponds to the ... More
Presented by Dr. Evgeniy CHESNOKOV
Type: Poster Track: SR technological application and X-ray apparatus
Accelerator recuperator FEL works in the following energy range: 1st FEL to 12 MeV, 2nd FEL - 20 MeV, 3rd FEL - 40 MeV. The electron beam current is about 10 mA. When the beam is lost on the walls of the vacuum chamber, the dose rate of bremsstrahlung reaches several kilo gray per hour. After recuperation, the beam (1.5 MeV) enters into the copper dump, the contribution to the dose rate from th ... More
Presented by Dr. Tatiana SALIKOVA, Prof. NIKOLAY VINOKUROV, Dr. Mikhail PETRICHENKOV, Dr. Oleg SHEVCHENKO, Dr. Vladimir CHUDAEV, Mr. Anatolia REPKOV, Mr. Vladimir EKSTA
Type: Poster Track: SR and FEL sources and centers
The Superconducting multipole Wiggler (SCW) originally manufactured by BINP (Budker institute of nuclear physics at Novosibirsk) was installed at the ELETTRA storage ring (Triest, Italy) in 2002. In 2013 upgrade of wiggler cryostat was made by BINP to reduce liquid helium consumption. From June 2013 to January 2017 the wiggler functioned without problems of helium consumption (although it quenched ... More
Presented by Dr. Sergey KHRUSHCHEV
Type: Poster Track: SR for medicine and biology application
Presently studies of the role of trace and macro elements in the biogenesis of diverse biologically active phenolic compounds (PC) in medicinal plants have become increasingly actual due to PC great diversity and specific functions in physiological processes. Beneficial properties of blue honeysuckle Lonicera caerulea L. s.l. (Caprifoliaceae Juss.) are attributed to their PC pool, as well as to th ... More
Presented by Dr. Irina BOYARSKIKH
Type: Oral Track: X-ray spectroscopy
0.5-20 μm thin CsI:Tl scintillation screens with high spatial resolution were pre- pared by the thermal deposition method. It was proposed that the spatial resolution of the prepared conversion screens can be significantly improved by an additional substrate heating as well as by deposition of a carbon layer. Also thin CsI:Tl films deposited on mylar substrates can be used for non-destructive di ... More
Presented by Mr. evgeny KOZYREV
Type: Poster Track: THz radiation aplication
Pump-probe experiment is widely used spectroscopic method. In case using different frequencies and different sources for pumping and probing there practically are no limitations on time duration of phenomena under investigation. But if using the same source for pumping and probing time range is limited by length of optical scheme from picoseconds to few nanoseconds. By using NovoFEL emission t ... More
Presented by Dr. Vasiliy POPIK
Type: Oral Track: THz radiation aplication
When the surface plasmon polaritons (SPP) propagate along the metal-dielectric surfaces, the plasmon energy decays due to ohmic losses and radiative losses due to scattering by inhomogeneities. When the plasmon propagates along a convex surface, additional losses are possible due to a "disruption" of radiation along the tangent to the surface. In this paper, we studied the energy decay of the tera ... More
Presented by Prof. Boris KNYAZEV
Type: Invited Oral Track: SR and FEL sources and centers
Laser nature of a continuous pulse-periodical radiation of the Novosibirsk terahertz free-electron laser appears in a good coherency of its pulses and very narrow synchronized longitudinal modes. Filtration of one of the modes by a system of three resonance Fabry-Perot interferometers allows to create laser source with monochromaticity which is sufficient for typical high-resolution THz spectrosco ... More
Presented by Dr. Vitaly KUBAREV
Type: Poster Track: SR technological application and X-ray apparatus
High-performance of laser-like third generation X-ray synchrotron radiation sources provide incredible brightness and coherence, which triggered the development of compound refractive lenses (CRL). Since the first demonstration in 1996 [1] they have been realized in a wide spectrum of designs - in one and two dimensions with spherical, parabolic or kinoform profile. CRLs are fabricated from materi ... More
Presented by Aleksandr BARANNIKOV
Type: Poster Track: THz radiation aplication
Radially and axial polarized beams can be generated by superposition of orthogonally polarized Hermite-Gaussian-like beams which are equal in amplitude. The DOE which transforms Gaussian into Hermite-Gaussian modes was a plate with a phase step equal to half of the wavelength. The combination of the Hermite-Gaussian modes (1.0) and (0.1) gives us the Laguerre-Gaussian mode whose polarization stro ... More
Presented by Dr. Yulia CHOPOROVA
Type: Poster Track: X-ray structural analysis
X-ray analysis has been applied for the study of the ultrafine-grained structure as a result of intense deformation in crystals Ni3Al alloy ordered by the L12 type using synchrotron radiation. In the initial state the material under study is in the single crystal ordered state and is oriented along the compression axis [211]. It should be noted that along with the ordered phase there is a small fr ... More
Presented by Olga KUTS
Type: Oral Track: SR and FEL sources and centers
The most advanced X-ray sources, such as third-generation synchrotrons and free electron lasers (XFEL), are capable to generate high brightness coherent radiation, especially in the hard X-ray region. The availability of such beams facilitates to the development of a new generation of X-ray optics, which goes far beyond simple focusing optical elements. This optics possesses new optical functions, ... More
Presented by Mr. Dmitrii ZVEREV
Type: Oral Track: SR technological application and X-ray apparatus
Nowadays, the development of modern microelectronics is due to the permanent improvement of non-destructive X-ray diffraction methods for studying microelectronics devices and semiconductor crystalline materials, which are used for. Intrinsic crystal structure defects often cause the deterioration parameters and characteristics of microelectronics. Thereby, identification of the imperfections of t ... More
Presented by Dr. Denis ZOLOTOV
Type: Poster Track: SR and FEL sources and centers
The evolution of X-ray sources such as third generation synchrotrons and free electron lasers has led to a development and utilization of coherence-related techniques. The laser-like properties of such sources allow one to realize the paraxial schemes of interferometry techniques like Young double slit interferometer or a grating interferometer. The idea of these setups is based on creating of a s ... More
Presented by Mr. Dmitrii ZVEREV
Type: Poster Track: SR technological application and X-ray apparatus
Flash radiography (bremsstrahlung and synchrotron radiation) was used to record micro-cumulation from the surface of flat lead, tin and cooper samples having constructional elements, i.e. a steel tube, joints of members and cavities of the shock-loaded surface. Results of this flash radiography are compared in this report.
Presented by Mr. Mikhail STOLBIKOV
Type: Oral Track: SR technological application and X-ray apparatus
Not fully ordered system (not crystals) are widespread in the surrounding nature, as well as in a number of new technologies. It seems natural to want to know what is inside, how different natural formations are arranged, or how accurately we created what we wanted. X-ray study can help us in this. As is known, X-ray structural analysis allows to reveal the internal structure of crystals up to th ... More
Presented by Prof. Victor ASADCHIKOV
Type: Oral Track: X-ray spectroscopy
Valleriite is a mineral composed of alternating layers of brucite-like phase yMg(OH)2•zAl(OH)3 and sulfide close to chalcopyrite CuFeS2. Generally, valleriite is not very abundant, but “coppery” ores of Noril’sk ore provenance contain up to 20% of this mineral, industrial values of copper, nickel and are enriched in platinum group metals. Flotation of the coppery ores is poor, and even sma ... More
Presented by Prof. Yuri MIKHLIN
Type: Poster Track: X-ray spectroscopy
Neural and neuromorphic networks that mimic brain functions are used in various fields of science and technology. To create more efficient neural networks, it is required to expand the element base with new instruments with a memory effect. This is the property of a memristor, a passive device whose resistance can be changed by passing a certain current pulse through it. The memristor is a metal-d ... More
Presented by Dr. Svetlana TRUBINA
Type: Poster Track: X-ray fluorescent analysis
Annotation. The abstract presents the data on chemical composition of moonmilk samples from Botovskaya cave, the largest cave in Russia. Concerning with the host rocks, moonmilk is characterized by the increased Ca and Sr and reduced Ti, Mn and Fe contents. The investigation of this type of cave sediments with the use of XRF SR method was done for the first time. Introduction Cave investigatio ... More
Presented by Ms. Ekaterina BAZAROVA