An examination of phase retrieval algorithms as applied to phase contrast tomography using laboratory sources

Robert S. Bradley; Andrew McNeil; Philip J. Withers

doi:10.1117/12.860536

2 September 2010 An examination of phase retrieval algorithms as applied to phase contrast tomography using laboratory sources

Robert S. Bradley, Andrew McNeil, Philip J. Withers

Author Affiliations +

Proceedings Volume 7804, Developments in X-Ray Tomography VII; 780404 (2010) https://doi.org/10.1117/12.860536
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

Many objects relevant to materials science, biology and medicine are weakly absorbing to the hard energy x rays typically produced by laboratory sources. However, these samples can produce significant shifts in the phase of the x rays, which can be exploited using in-line phase contrast. This paper describes the work carried out to optimize phase contrast tomography using a polychromatic laboratory source. A variety of different phase retrieval algorithms are compared for two samples, one of uniformly low absorption contrast, the other comprising soft and hard materials, with a view to establishing basic guidelines for laboratory phase contrast tomography.

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Robert S. Bradley, Andrew McNeil, and Philip J. Withers "An examination of phase retrieval algorithms as applied to phase contrast tomography using laboratory sources", Proc. SPIE 7804, Developments in X-Ray Tomography VII, 780404 (2 September 2010); https://doi.org/10.1117/12.860536

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