The energy dispersive scheme of X-ray fluorescence analysis with a crystal polarizer and polycapillary optics

The efficiency of the polarization scheme based on polycapillary optics and a diamond crystal polarizer was demonstrated. The scheme provides suppression of the background of scattered radiation in measuring X-ray fluorescence spectra. A quasi-parallel X-ray beam with an angular divergence of 4.2 mrad was formed by a microfocus source with a copper anode and polycapillary half-lens. Simultaneous polarization and monochromatization of radiation was obtained with a crystal of natural diamond, which was set at the diffraction reflection (113). The degree of polarization of CuKα1 spectral line and the maximum radiation flux were respectively equal to 99.86% and 5 · 106 photon/s. In the direction orthogonal to the plane of diffraction, the maximum attenuation of the background was up to 19 dB. Copyright © 2017 John Wiley & Sons, Ltd.

Авторы
Turyanskiy A.G.1 , Gizha S.S. 1, 2 , Senkov V.M.1 , Stanishevskiy Y.M. 2
Журнал
Издательство
John Wiley and Sons Ltd
Номер выпуска
6
Язык
Английский
Страницы
548-553
Статус
Опубликовано
Том
46
Год
2017
Организации
  • 1 P.N. Lebedev Physical Institute, RAS, Leninskii pr. 53, Moscow, 119991, Russian Federation
  • 2 RUDN University, Miklukho-Maklaya str. 6, Moscow, 117198, Russian Federation
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/5226/
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