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 | |
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)