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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-56776

Modregger, P; Pinzer, B R; Thüring, T; Rutishauser, S; David, C; Stampanoni, M (2011). Sensitivity of X-ray grating interferometry. Optics Express, 19(19):18324-18338.

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It is known that the sensitivity of X-ray phase-contrast grating interferometry with regard to electron density variations present in the sample is related to the minimum detectable refraction angle. In this article a numerical framework is developed that allows for a realistic and quantitative determination of the sensitivity. The framework is validated by comparisons with experimental results and then used for the quantification of several influences on the sensitivity, such as spatial coherence or the number of phase step images. In particular, we identify the ideal inter-grating distance with respect to the highest sensitivity for parallel beam geometry. This knowledge will help to optimize existing synchrotron-based grating interferometry setups.


34 citations in Web of Science®
33 citations in Scopus®
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171 downloads since deposited on 28 Jan 2012
24 downloads since 12 months

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Biomedical Engineering
Dewey Decimal Classification:170 Ethics
610 Medicine & health
Deposited On:28 Jan 2012 15:00
Last Modified:05 Apr 2016 15:28
Publisher:Optical Society of America (OSA)
Publisher DOI:10.1364/OE.19.018324
PubMed ID:21935201

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