Journal article
Hard X-ray quantitative non-interferometric phase-contrast imaging
TE Gureyev, C Raven, A Snigirev, I Snigireva, SW Wilkins, JM Boone (ed.), JT Dobbins (ed.)
MEDICAL IMAGING 1999: PHYSICS OF MEDICAL IMAGING, PTS 1 AND 2 | SPIE-INT SOC OPTICAL ENGINEERING | Published : 1999
DOI: 10.1117/12.349510
Abstract
We report the results of quantitative hard X-ray phase-contrast microscopy and tomography using synchrotron radiation, in-line imaging geometry and a non-interferometric phase retrieval technique base on the Transport of Intensity equation. This quantitative imaging method is fast, simple, robust, does not require sophisticated X-ray optical elements and can potentially provide submicron spatial resolution over a field of view of the order of centimeters. In the present experiment a spatial resolution of approximately 0.8 micron has been achieved in images of a polystyrene sphere using 19.6 keV X-rays. We demonstrate that appropriate processing of phase-contrast images obtained in the in-lin..
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