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SUMMARY:The design of «Structural Diagnostics» beamline for SRF «SKIF»
DTSTART;VALUE=DATE-TIME:20200715T072000Z
DTEND;VALUE=DATE-TIME:20200715T074000Z
DTSTAMP;VALUE=DATE-TIME:20260411T051226Z
UID:indico-contribution-1026@indico.inp.nsk.su
DESCRIPTION:Speakers: Boris Zakharov (Boreskov Institute of Catalysis SB R
 AS\, Novosibirsk State University)\nThe design of the user station for a f
 ourth-generation synchrotron radiation (SR) source SRF “SKIF” has been
  proposed. The station is designed to solve a wide range of research and t
 echnological tasks using X-ray diffraction techniques. The concept of the 
 station is based on the implementation of a complex approach to the struct
 ural studies of synthetic and natural objects. The most complete set of ex
 perimental diffraction techniques will allow one to benefit from the uniqu
 e advantages of a modern SR source\, including advanced X-ray optic soluti
 ons\, high SR brightness and efficient X-ray detectors.   \n  \nSupercondu
 cting undulator with a magnetic period of 15.6 mm\, an interpolar gap of 8
  mm and a total length of 2 m will be used as insertion device (ID). In th
 e main mode the magnetic field in the undulator will be 1.06 T (K = 1.54) 
 giving SR harmonics generation with a step of 2.5 keV. The station include
 s four sections: High-resolution powder diffraction (section 1-2-1)\; In s
 itu diffraction (section 1-2-2)\; Single-crystal X-ray diffraction (sectio
 n 1-2-3)\; Small angle X-ray scattering (section 1-2-4). In the main opera
 ting mode of the ID all the sections are supposed to work simultaneously. 
 This is achieved by splitting the components of the SR spectrum between di
 fferent sections by three beam multiplexing monochromators (beam splitters
 ). Flat diamond plates with an (111) orientation and a thickness of about 
 100 μm will be used to split the beam. The components of ID spectrum with
  energies of 12.50 keV / 0\, 99 Å\, 22.50 keV / 0.55 Å and 32.50 keV / 0
 .38 Å will be directed to side sections of the station at angles of 28\, 
 15 and 11° with respect to primary beam. For the experiments requiring en
 ergy scanning an alternative mode will be used provided by the possibility
  of the change of the magnetic field in the undulator. In this mode the un
 dulator radiation transmitted to only 1-2-1 section due to the restriction
 s of the multibranch optical design. To obtain the necessary beam paramete
 rs we plan to use the refractive X-ray optics beryllium\, diamond or alumi
 num lenses depending on beam energy. To detect diffraction pattern\, we pr
 opose to use modern hybrid-type detectors based on sensors made of silicon
  or cadmium telluride for high energy applications.   \n  \n**Acknowledgem
 ents**   \n  \nThe work was supported by Ministry of Science and Higher Ed
 ucation of the Russian Federation (grant No. АААА-А19-119020890025-3)
 .\n\nhttps://indico.inp.nsk.su/event/24/contributions/1026/
LOCATION: Zoom 890 9721 5207
URL:https://indico.inp.nsk.su/event/24/contributions/1026/
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