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Medicine, material science and security: the versatility of the coded-aperture approach

Munro, PRT; Endrizzi, M; Diemoz, PC; Hagen, CK; Szafraniec, MB; Millard, TP; Zapata, CE; ... Olivo, A; + view all (2014) Medicine, material science and security: the versatility of the coded-aperture approach. Philosophical Transactions of the Royal Society of London. Series A: Mathematical and physical sciences , 372 (2010) , Article 20130029. 10.1098/rsta.2013.0029. Green open access

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Abstract

The principal limitation to the widespread deployment of X-ray phase imaging in a variety of applications is probably versatility. A versatile X-ray phase imaging system must be able to work with polychromatic and non-microfocus sources (for example, those currently used in medical and industrial applications), have physical dimensions sufficiently large to accommodate samples of interest, be insensitive to environmental disturbances (such as vibrations and temperature variations), require only simple system set-up and maintenance, and be able to perform quantitative imaging. The coded-aperture technique, based upon the edge illumination principle, satisfies each of these criteria. To date, we have applied the technique to mammography, materials science, small-animal imaging, non-destructive testing and security. In this paper, we outline the theory of coded-aperture phase imaging and show an example of how the technique may be applied to imaging samples with a practically important scale.

Type: Article
Title: Medicine, material science and security: the versatility of the coded-aperture approach
Event: Taking X-ray phase contrast imaging into mainstream applications
Location: Royal Society, London, UK
Dates: 2013-02-11 - 2013-02-12
Open access status: An open access version is available from UCL Discovery
DOI: 10.1098/rsta.2013.0029
Publisher version: http://dx.doi.org/10.1098/rsta.2013.0029
Language: English
Additional information: © 2014 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, provided the original author and source are credited.
Keywords: X-ray imaging, Differential phase contrast, X-ray masks
UCL classification: UCL
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/1418224
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