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Proceedings Paper

Parameter optimization for a grating-based phase contrast x-ray system
Author(s): Bonsung Koo; Ming Jiang; Christopher L. Wyatt; Ge Wang
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Paper Abstract

Differential Phase Contrast Imaging (DPCI) has the potential to vastly increase soft tissue contrast. DPCI requires spatial and temporal coherence as generated by a synchrotron or a micro-focus X-ray source; however, recent research demonstrates DPCI can be implemented using a conventional X-ray source with three transmission gratings (Pfeiffer et al., Nature 2006). This paper describes the optimization of the essential system parameters (system size, delivered dose, spatial resolution) of this implementation from a theoretical perspective. The optimization of these parameters is an essential step in practical application of DPCI. We conclude that the minimum size of the system is approximately 700 mm, the minimum resolution is 100 um, and the dose is 1/1000 that of conventional absorption CT.

Paper Details

Date Published: 18 March 2008
PDF: 9 pages
Proc. SPIE 6913, Medical Imaging 2008: Physics of Medical Imaging, 691348 (18 March 2008); doi: 10.1117/12.770548
Show Author Affiliations
Bonsung Koo, Virginia Polytechnic Institute and State Univ. (United States)
Ming Jiang, Peking Univ. (China)
Virginia Polytechnic Institute and State Univ. (United States)
Christopher L. Wyatt, Virginia Polytechnic Institute and State Univ. (United States)
Ge Wang, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 6913:
Medical Imaging 2008: Physics of Medical Imaging
Jiang Hsieh; Ehsan Samei, Editor(s)

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