Retrieval of weak x-ray scattering using edge illumination

Charlotte J. Maughan Jones, Fabio A. Vittoria, Alessandro Olivo, Marco Endrizzi, Peter R. T. Munro

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


X-ray phase contrast imaging provides additional modes of image contrast compared to conventional attenuation-based x-ray imaging, thus providing additional structural and functional information about the sample. The edge-illumination (EI) technique has been used to provide attenuation, refraction, and scattering contrast in both biological and non-biological samples. However, the retrieval of low scattering signals by fitting a single Gaussian remains problematic, principally due to the inability of the EI system to achieve perfect dark-field illumination. We present a new retrieval method that fits three Gaussians, which successfully overcomes this limitation, and provide examples of the retrieval of such signals in highly absorbing, weakly scattering samples. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License.

Original languageEnglish
Pages (from-to)3874-3877
Number of pages4
JournalOptics Letters
Issue number16
Publication statusPublished - 15 Aug 2018


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