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- W1988787714 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." @default.
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- W1988787714 date "2013-03-19" @default.
- W1988787714 modified "2023-09-23" @default.
- W1988787714 title "High energy x-ray phase-contrast imaging using glancing angle grating interferometers" @default.
- W1988787714 doi "https://doi.org/10.1117/12.2007930" @default.
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