Tomography with grating interferometers at low-brilliance sources

Timm Weitkamp; Christian David; Christian Kottler; Oliver Bunk; Franz Pfeiffer

doi:10.1117/12.683851

7 September 2006 Tomography with grating interferometers at low-brilliance sources

Timm Weitkamp, Christian David, Christian Kottler, Oliver Bunk, Franz Pfeiffer

Proceedings Volume 6318, Developments in X-Ray Tomography V; 63180S (2006) https://doi.org/10.1117/12.683851
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

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.

Citation Download Citation

Timm Weitkamp, Christian David, Christian Kottler, Oliver Bunk, and Franz Pfeiffer "Tomography with grating interferometers at low-brilliance sources", Proc. SPIE 6318, Developments in X-Ray Tomography V, 63180S (7 September 2006); https://doi.org/10.1117/12.683851

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