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


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Аннотация

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.

Авторлар туралы

A. Gogolev

National Research Tomsk Polytechnic University

Email: kazar@sci.lebedev.ru
Ресей, pr. Lenina 30, Tomsk, 634034

M. Kazaryan

Lebedev Physical Institute

Хат алмасуға жауапты Автор.
Email: kazar@sci.lebedev.ru
Ресей, Leninskii pr. 53, Moscow, 119991

A. Obkhodsky

National Research Tomsk Polytechnic University

Email: kazar@sci.lebedev.ru
Ресей, pr. Lenina 30, Tomsk, 634034

A. Popov

National Research Tomsk Polytechnic University

Email: kazar@sci.lebedev.ru
Ресей, pr. Lenina 30, Tomsk, 634034

R. Rezaev

National Research Tomsk Polytechnic University; National Research Nuclear University “MEPhI”

Email: kazar@sci.lebedev.ru
Ресей, pr. Lenina 30, Tomsk, 634034; Kashirskoe sh. 31, Moscow, 115409

E. Smirnova

National Research Tomsk Polytechnic University

Email: kazar@sci.lebedev.ru
Ресей, pr. Lenina 30, Tomsk, 634034

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