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Proceedings Paper

Tomography with grating interferometers at low-brilliance sources
Author(s): Timm Weitkamp; Christian David; Christian Kottler; Oliver Bunk; Franz Pfeiffer
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Paper 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.

Paper Details

Date Published: 7 September 2006
PDF: 10 pages
Proc. SPIE 6318, Developments in X-Ray Tomography V, 63180S (7 September 2006); doi: 10.1117/12.683851
Show Author Affiliations
Timm Weitkamp, Forschungszentrum Karlsruhe (Germany)
Christian David, Paul Scherrer Institut (Switzerland)
Christian Kottler, Paul Scherrer Institut (Switzerland)
Oliver Bunk, Paul Scherrer Institut (Switzerland)
Franz Pfeiffer, Paul Scherrer Institut (Switzerland)


Published in SPIE Proceedings Vol. 6318:
Developments in X-Ray Tomography V
Ulrich Bonse, Editor(s)

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