Instruments and methods of investigation

QEXAFS method implementation using adaptive X-ray optical elements

 a, b,  a, b,  a, b,  b,  a, b,  b,  a, b,  b,  a, b
a Federal Scientific Research Center "Crystallography and Photonics", Russian Academy of Sciences, Leninskii prosp 59, Moscow, 119333, Russian Federation
b National Research Centre Kurchatov Institute, pl. akad. Kurchatova 1, Moscow, 123182, Russian Federation

A modification of the of high-speed high-resolution X-ray absorption spectroscopy (Quick Extended X-ray Absorption Fine Structure, QEXAFS) method based on an adaptive bending element of X-ray optics is described. This technique was implemented at the Langmuir station of the Kurchatov Synchrotron Radiation Source (KISI-Kurchatov). The absorption spectrum of a model sample, bromine in a sodium bromide compound, was recorded. A recording speed up to 5 seconds per spectrum was achieved in the continuously recording regime. The method is applicable for obtaining information about both the structure and dynamics of a wide range of objects, ordered and disordered, in any aggregate state.

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Keywords: time-resolved research methods, X-ray absorption spectroscopy, QEXAFS
PACS: 07.85.Ne, 07.85.Qe, 61.05.cj (all)
DOI: 10.3367/UFNe.2020.06.038779
Citation: Protsenko A I, Blagov A E, Pisarevskii Yu V, Rogachev A V, Targonsky A V, Trigub A L, Eliovich I A, Yakunin S N, Kovalchuk M V "QEXAFS method implementation using adaptive X-ray optical elements" Phys. Usp. 64 83–87 (2021)
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Received: 18th, May 2020, revised: 5th, June 2020, 10th, June 2020

:   ,   ,   ,   ,   ,   ,   ,   ,    « QEXAFS » 191 88–92 (2021); DOI: 10.3367/UFNr.2020.06.038779

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