%I Optical Society of America
%P 3874-3877
%V 43
%L discovery10052407
%K X-ray imaging, X-ray imaging, X-ray coded apertures, Scattering measurements, Phase retrieval
%N 16
%J Optics Letters
%X 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.
%A C Maughan Jones
%A FA Vittoria
%A A Olivo
%A M Endrizzi
%A PRT Munro
%O © 2018 The Optical Society. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/).
%D 2018
%T Retrieval of weak x-ray scattering using edge illumination