Application of variable-magnification X-ray Bragg magnifier to analyzer-based phase-contrast computed tomography
Autor: | Hiroshi Sugiyama, Yumiko Takahashi, Keiichi Hirano |
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Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Japanese Journal of Applied Physics. 53:040302 |
ISSN: | 1347-4065 0021-4922 |
Popis: | A novel X-ray Bragg magnifier of variable magnification is proposed. Using a Si(220) asymmetric crystal as the Bragg magnifier, we successfully controlled the magnification factor, M, between 0.18 and 5.6 at a wavelength of 0.112 nm. The observed spatial resolution with a fiber-coupled X-ray CCD camera, the pixel size of which was 23 × 23 µm2, was 15 µm at M = 5.6, 50 µm at M = 1, and 250 µm at M = 0.17. The X-ray magnifier was successfully applied to analyzer-based phase-contrast computed tomography for the non-destructive observation of a sample at several magnification factors. |
Databáze: | OpenAIRE |
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