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Proceedings Paper

X-ray phase-contrast imaging with 2D grating interferometry
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Paper Abstract

X-ray imaging is of paramount importance for clinical and pre-clinical applications but it is fundamentally restricted by the attenuation-based contrast mechanism, which has remained essentially the same since Roentgen's discovery a century ago. Recently, based on the Talbot effect, groundbreaking work was reported using 1D gratings for x-ray phase-contrast imaging with a hospital-grade x-ray tube instead of a synchrotron or micro-focused source. In this paper, we report an extension of our earlier 2D-grating-based work to the case of Gaussian beams. This 2D-grating-based approach has the potential to reduce the imaging time, increase the spatial coherence, and enhance the accuracy and robustness compared to current 1D-grating-based phase-contrast imaging techniques.

Paper Details

Date Published: 16 September 2008
PDF: 11 pages
Proc. SPIE 7078, Developments in X-Ray Tomography VI, 707816 (16 September 2008); doi: 10.1117/12.794069
Show Author Affiliations
Ming Jiang, Peking Univ. (China)
Virginia Polytechnic Institute and State Univ. (United States)
Christopher Lee Wyatt, Virginia Polytechnic Institute and State Univ. (United States)
Ge Wang, Virginia Polytechnic Institute and State Univ. (United States)

Published in SPIE Proceedings Vol. 7078:
Developments in X-Ray Tomography VI
Stuart R. Stock, Editor(s)

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