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Asymmetric masks for laboratory-based X-ray phase-contrast imaging with edge illumination

Endrizzi, M; Astolfo, A; Vittoria, FA; Millard, TP; Olivo, A; (2016) Asymmetric masks for laboratory-based X-ray phase-contrast imaging with edge illumination. Scientific Reports , 6 , Article 25466. 10.1038/srep25466. Green open access

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Abstract

We report on an asymmetric mask concept that enables X-ray phase contrast imaging without requiring any movement in the system during data acquisition. The method is compatible with laboratory equipment, namely a commercial detector and a rotating anode tube. The only motion required is that of the object under investigation which is scanned through the imaging system. Two proof-of-principle optical elements were designed, fabricated and experimentally tested. Quantitative measurements on samples of known shape and composition were compared to theory with good agreement. The method is capable of measuring the attenuation, refraction and (ultra-small-angle) X-ray scattering, does not have coherence requirements and naturally adapts to all those situations in which the X-ray image is obtained by scanning a sample through the imaging system.

Type: Article
Title: Asymmetric masks for laboratory-based X-ray phase-contrast imaging with edge illumination
Location: UK
Open access status: An open access version is available from UCL Discovery
DOI: 10.1038/srep25466
Publisher version: http://dx.doi.org/10.1038/srep25466
Language: English
Additional information: Copyright © The authors 2016. This work is licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/). The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.
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/1482193
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