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- Title
Phase-contrast X-ray imaging combining free space propagation and Bragg diffraction.
- Authors
Coan, Paola; Pagot, Elodie; Fiedler, Stefan; Cloetens, Peter; Baruchel, José; Bravin, Alberto
- Abstract
The combination of X-ray 'propagation-based' and 'analyzer-based' phase-contrast imaging with a perfect crystal-analyzer is investigated. The image pattern produced using this 'hybrid' imaging technique presents peculiar features that can be interpreted as a mixture of the two independent phase-contrast signals. A quantitative analysis has been performed in terms of signal-to-noise ratio for the three techniques considered in this paper. Results show that in the 'hybrid imaging' technique this parameter has a weaker dependence on the angular alignment of the crystal analyser with respect to the 'analyser-based' imaging. This pioneering experiment indicates that this hybrid imaging technique might permit simultaneous advantage of the specific features of the two imaging methods to be taken.
- Publication
Journal of synchrotron radiation, 2005, Vol 12, Issue Pt 2, p241
- ISSN
0909-0495
- Publication type
Journal Article
- DOI
10.1107/S0909049504028444