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

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

    Research output: Chapter in Book/Report/Conference proceedingChapter

    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. © 2010 Copyright SPIE - The International Society for Optical Engineering.
    Original languageEnglish
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering|Proc SPIE Int Soc Opt Eng
    Volume7804
    DOIs
    Publication statusPublished - 2010
    EventDevelopments in X-Ray Tomography VII - San Diego, CA
    Duration: 1 Jul 2010 → …

    Publication series

    NameProceedings of SPIE-The International Society for Optical Engineering

    Conference

    ConferenceDevelopments in X-Ray Tomography VII
    CitySan Diego, CA
    Period1/07/10 → …

    Keywords

    • in-line phase contrast
    • microfocus tube
    • phase retrieval
    • x-ray tomography

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