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Proceedings Paper

Mesh-based and polycapillary optics-based x-ray phase imaging
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Paper Abstract

The contrast in conventional x-ray imaging is generated by differential attenuation of x rays, which is generally very small in soft tissue. Phase imaging has been shown to improve contrast and signal to noise ratio (SNR) by factors of 100 or more. However, acquiring phase images typically requires a highly spatially coherent source (e.g. a 50 μm or smaller microfocus source or a synchrotron facility), or multiple images acquired with precisely aligned gratings. Here we demonstrate two phase imaging techniques compatible with clinical sources: polycapillary focusing optics to enhance source coherence and mesh-based structured illumination.

Paper Details

Date Published: 1 March 2019
PDF: 7 pages
Proc. SPIE 10948, Medical Imaging 2019: Physics of Medical Imaging, 109484U (1 March 2019); doi: 10.1117/12.2512628
Show Author Affiliations
Weiyuan Sun, Univ. at Albany (United States)
Congxiao He, Univ. at Albany (United States)
Carolyn A. MacDonald, Univ. at Albany (United States)
Jonathan C. Petruccelli, Univ. at Albany (United States)

Published in SPIE Proceedings Vol. 10948:
Medical Imaging 2019: Physics of Medical Imaging
Taly Gilat Schmidt; Guang-Hong Chen; Hilde Bosmans, Editor(s)

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