Using a plane wave approximation in simulation of radiation distribution in an X-ray Talbot interferometer

Abstract

This study is devoted to the analysis of the plane-wave approximation applicability to X-ray radiation incident on an object. Based on simple calculations, it is shown that an X-ray tube focal spot 0.4 × 0.8 mm in size at distances of ~1 m can be considered as a point source; however, the plane-wave approximation for such X-ray radiation with energy E = 22keV is valid for radiation source–object distances much longer than 10 m.

Original language	English
Pages (from-to)	350-352
Number of pages	3
Journal	Bulletin of the Lebedev Physics Institute
Volume	44
Issue number	12
DOIs	https://doi.org/10.3103/S1068335617120028
Publication status	Published - 1 Dec 2017

Keywords

plane-wave approximation
spherical wavefront
Talbot interferometer
X-ray radiation
X-ray tube

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.3103/S1068335617120028

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title = "Using a plane wave approximation in simulation of radiation distribution in an X-ray Talbot interferometer",

abstract = "This study is devoted to the analysis of the plane-wave approximation applicability to X-ray radiation incident on an object. Based on simple calculations, it is shown that an X-ray tube focal spot 0.4 × 0.8 mm in size at distances of ~1 m can be considered as a point source; however, the plane-wave approximation for such X-ray radiation with energy E = 22keV is valid for radiation source–object distances much longer than 10 m.",

keywords = "plane-wave approximation, spherical wavefront, Talbot interferometer, X-ray radiation, X-ray tube",

author = "Gogolev, {A. S.} and Kazaryan, {M. A.} and Obkhodsky, {A. V.} and Popov, {A. S.} and Rezaev, {R. O.} and Smirnova, {E. A.}",

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AU - Gogolev, A. S.

AU - Kazaryan, M. A.

AU - Obkhodsky, A. V.

AU - Popov, A. S.

AU - Rezaev, R. O.

AU - Smirnova, E. A.

PY - 2017/12/1

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AB - This study is devoted to the analysis of the plane-wave approximation applicability to X-ray radiation incident on an object. Based on simple calculations, it is shown that an X-ray tube focal spot 0.4 × 0.8 mm in size at distances of ~1 m can be considered as a point source; however, the plane-wave approximation for such X-ray radiation with energy E = 22keV is valid for radiation source–object distances much longer than 10 m.

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KW - spherical wavefront

KW - Talbot interferometer

KW - X-ray radiation

KW - X-ray tube

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