7 September 2006 Tomography with grating interferometers at low-brilliance sources
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The coherence requirements for efficient operation of an X-ray grating interferometer are discussed. It is shown how a Talbot-Lau geometry, in which an array of equidistant secondary sources is used, can be used to decouple fringe visibility in the interferometer (and thus, its efficiency) from the total size of the X-ray source. This principle can be used for phase-contrast radiography and tomography with sources of low brilliance, such as X-ray tubes.
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Timm Weitkamp, Timm Weitkamp, Christian David, Christian David, Christian Kottler, Christian Kottler, Oliver Bunk, Oliver Bunk, Franz Pfeiffer, Franz Pfeiffer, } "Tomography with grating interferometers at low-brilliance sources", Proc. SPIE 6318, Developments in X-Ray Tomography V, 63180S (7 September 2006); doi: 10.1117/12.683851; https://doi.org/10.1117/12.683851

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