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Noise analysis of speckle-based x-ray phase-contrast imaging
KTH, School of Engineering Sciences (SCI), Applied Physics, Biomedical and X-ray Physics.ORCID iD: 0000-0002-7258-002X
KTH, School of Engineering Sciences (SCI), Applied Physics, Biomedical and X-ray Physics.
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2016 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 41, no 23, p. 5490-5493Article in journal (Refereed) Published
Abstract [en]

Speckle-based x-ray phase-contrast imaging has drawn increasing interest in recent years as a simple, multimodal, cost-efficient, and laboratory-source adaptable method. We investigate its noise properties to help further optimization on the method and further comparison with other phase-contrast methods. An analytical model for assessing noise in a differential phase signal is adapted from studies on the digital image correlation technique in experimental mechanics and is supported by simulations and experiments. The model indicates that the noise of the differential phase signal from speckle-based imaging has a behavior similar to that of the grating-based method.

Place, publisher, year, edition, pages
The Optical Society , 2016. Vol. 41, no 23, p. 5490-5493
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-199506DOI: 10.1364/OL.41.005490ISI: 000389654000019Scopus ID: 2-s2.0-85006049009OAI: oai:DiVA.org:kth-199506DiVA, id: diva2:1066221
Note

QC 20170117

Available from: 2017-01-17 Created: 2017-01-09 Last updated: 2017-11-29Bibliographically approved

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Romell, Jenny

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