Edge-illumination x-ray phase-contrast imaging

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Edge-illumination x-ray phase-contrast imaging

Olivo, A; (2021) Edge-illumination x-ray phase-contrast imaging. Journal of Physics: Condensed Matter , 33 (36) , Article 363002. 10.1088/1361-648X/ac0e6e. Green open access

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Abstract

Although early demonstration dates back to the mid-sixties, x-ray phase-contrast imaging (XPCI) became hugely popular in the mid-90s, thanks to the advent of 3rd generation synchrotron facilities. Its ability to reveal object features that had so far been considered invisible to x-rays immediately suggested great potential for applications across the life and the physical sciences, and an increasing number of groups worldwide started experimenting with it. At that time, it looked like a synchrotron facility was strictly necessary to perform XPCI with some degree of efficiency—the only alternative being micro-focal sources, the limited flux of which imposed excessively long exposure times. However, new approaches emerged in the mid-00s that overcame this limitation, and allowed XPCI implementations with conventional, non-micro-focal x-ray sources. One of these approaches showing particular promise for 'real-world' applications is edge-illumination XPCI: this article describes the key steps in its evolution in the context of contemporary developments in XPCI research, and presents its current state-of-the-art, especially in terms of transition towards practical applications.

Type:	Article
Title:	Edge-illumination x-ray phase-contrast imaging
Open access status:	An open access version is available from UCL Discovery
DOI:	10.1088/1361-648X/ac0e6e
Publisher version:	https://doi.org/10.1088/1361-648X/ac0e6e
Language:	English
Additional information:	© 2021 IOP Publishing. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence (https://creativecommons.org/licenses/by/4.0/).
Keywords:	x-ray imaging, phase-contrast, x-ray masks, structured illumination
UCL classification:	UCL 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/10129694