@inproceedings{f8c8c8048206403aaf834ee859979f15,
title = "High energy X-ray phase-contrast imaging using glancing angle grating interferometers",
abstract = "The Talbot-Lau grating interferometer enables refraction based imaging with conventional X-ray tubes, offering the promise of a new medical imaging modality. The fringe contrast of the normal incidence interferometer is however insufficient at the >40 keV photon energies needed to penetrate thick body parts, because the thin absorption gratings used in the interferometer become transparent. To solve this problem we developed a new interferometer design using gratings at glancing incidence. For instance, using 120 μm thick Au gratings at 10° incidence we increased several fold the interferometer contrast for a spectrum with ∼58 keV mean energy. Tests of DPC-CT at 60-80kVp using glancing angle interferometers and medically relevant samples indicate high potential for clinical applications. A practical design for a slot-scan DPC-CT system for the knee is proposed, using glancing angle gratings tiled on a single substrate.",
keywords = "Talbot-lau interferometer, X-ray phase contrast",
author = "D. Stutman and Stayman, {J. W.} and M. Finkenthal and Siewerdsen, {J. H.}",
year = "2013",
doi = "10.1117/12.2007930",
language = "אנגלית",
isbn = "9780819494429",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
booktitle = "Medical Imaging 2013",
note = "Medical Imaging 2013: Physics of Medical Imaging ; Conference date: 11-02-2013 Through 14-02-2013",
}