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Sensitivity of laboratory based implementations of edge illumination X-ray phase-contrast imaging

Diemoz, PC; Hagen, CK; Endrizzi, M; Olivo, A; (2013) Sensitivity of laboratory based implementations of edge illumination X-ray phase-contrast imaging. Applied Physics Letters , 103 (24) , Article 244104. 10.1063/1.4845015. Green open access

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Abstract

We present a theoretical and experimental analysis of the angular sensitivity of edge illumination X-ray phase-contrast imaging in its implementation with conventional X-ray sources (sometimes referred to as the “coded-aperture” method). We study how the polychromaticity and finite source dimensions encountered in laboratory-based setups affect the detected signal. We also show that the sensitivity is independent of the period of the masks. Experimental images are presented and analyzed, proving that, despite the simple setup, high angular resolutions of a few hundred nanoradians can be obtained.

Type: Article
Title: Sensitivity of laboratory based implementations of edge illumination X-ray phase-contrast imaging
Location: US
Open access status: An open access version is available from UCL Discovery
DOI: 10.1063/1.4845015
Publisher version: http://dx.doi.org/10.1063/1.4845015
Language: English
Additional information: © 2013 Author(s). Published through AIP's Author Select initiative under the terms of the Creative Commons 3.0 Unported License.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1416306
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