Combined Diffraction and Absorption Band Filtration of a Polychromatic X-Ray Spectrum

Авторы: Turyanskiy A.G., Senkov V.M., Ziyatdinova M.Z., Kupriyanov M.Yu, Aksenova M.M., Lin Kyaw Zaw
Журнал: Physics of Wave Phenomena
Том: 30
Номер: 2
Год издания: 2022
Издательство: Allerton Press Inc.
Местоположение издательства: United States
Первая страница: 96
Последняя страница: 103
DOI: 10.3103/s1541308x2202008x
Аннотация: It is shown that combined diffraction and absorption filtration of a polychromatic X-ray spectrum allows spectral bands tunable in energy and relative width to be separated. In the energy range E < 30–35 keV, the spectral valley is formed by passing a polychromatic beam through a plate of the highly oriented pyrolytic graphite mosaic crystal ≈0.5–1 mm thick under the Bragg condition of diffraction. The filtration band width is extended by placing two or more plates at different diffraction angles. In the energy range E > 35–40 keV, filtration is performed by a selectively absorbing filter that contains a chemical element with the photoabsorption K-jump energy in this region of the spectrum. The results can be used in medical X-ray diagnostics and X-ray spectrometry.
Добавил в систему: Зиятдинова Мариям Зиннуровна

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