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

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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.

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Author information

Authors and Affiliations

  1. National Research Tomsk Polytechnic University, pr. Lenina 30, Tomsk, 634034, Russia

    A. S. Gogolev, A. V. Obkhodsky, A. S. Popov, R. O. Rezaev & E. A. Smirnova

  2. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    M. A. Kazaryan

  3. National Research Nuclear University “MEPhI”, Kashirskoe sh. 31, Moscow, 115409, Russia

    R. O. Rezaev

Authors
  1. A. S. Gogolev
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  2. M. A. Kazaryan
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  3. A. V. Obkhodsky
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  4. A. S. Popov
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  5. R. O. Rezaev
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  6. E. A. Smirnova
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Corresponding author

Correspondence to M. A. Kazaryan.

Additional information

Original Russian Text © A.S. Gogolev, M.A. Kazaryan, A.V. Obkhodsky, A.S. Popov, R.O. Rezaev, E.A. Smirnova, 2017, published in Kratkie Soobshcheniya po Fizike, 2017, Vol. 44, No. 12, pp. 7–11.

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Gogolev, A.S., Kazaryan, M.A., Obkhodsky, A.V. et al. Using a plane wave approximation in simulation of radiation distribution in an X-ray Talbot interferometer. Bull. Lebedev Phys. Inst. 44, 350–352 (2017). https://doi.org/10.3103/S1068335617120028

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  • DOI: https://doi.org/10.3103/S1068335617120028

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