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Sample phase gradient and fringe phase shift in dual phase grating X-ray interferometry

One of the key tasks in grating based x-ray phase contrast imaging is to accurately retrieve local phase gradients of a sample from measured intensity fringe shifts. To fulfill this task in dual phase grating interferometry, one needs to know the exact mathematical relationship between the two. In t...

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Bibliografische gegevens
Gepubliceerd in:Opt Express
Hoofdauteurs: Yan, Aimin, Wu, Xizeng, Liu, Hong
Formaat: Artigo
Taal:Inglês
Gepubliceerd in: Optical Society of America 2019
Onderwerpen:
Online toegang:https://ncbi.nlm.nih.gov/pmc/articles/PMC7046035/
https://ncbi.nlm.nih.gov/pubmed/31878715
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1364/OE.27.035437
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