Quantitative wave-optical numerical analysis of the dark-field signal in grating-based X-ray interferometry

A. Malecki, G. Potdevin, F. Pfeiffer

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

Here we report a full wave-optical numerical simulation framework that quantitatively predicts the outcome of grating-based X-ray dark-field imaging experiments on an ensemble of sub-pixel spherical scatterers. We particularly show how the behavior of the dark-field imaging signal differs from and complements the conventional X-ray transmission imaging signal when certain sample parameters, such as the size, number, and total volume of sub-pixel spherical substructures are changed and compare our findings to previous experiments and theoretical work. We believe that this work represents an important step in further understanding and applying the dark-field signal for future advanced X-ray imaging applications in medicine, materials science, and non-destructive industrial testing.

Original languageEnglish
Article number48001
JournalEurophysics Letters
Volume99
Issue number4
DOIs
StatePublished - Aug 2012

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