TY  - JOUR
EP  - 3877
Y1  - 2018/08/15/
AV  - public
TI  - Retrieval of weak x-ray scattering using edge illumination
KW  - X-ray imaging
KW  -  X-ray imaging
KW  -  X-ray coded apertures
KW  -  Scattering measurements
KW  -  Phase retrieval
PB  - Optical Society of America
ID  - discovery10052407
N2  - 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.
N1  - © 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/).
IS  - 16
VL  - 43
SP  - 3874
A1  - Maughan Jones, C
A1  - Vittoria, FA
A1  - Olivo, A
A1  - Endrizzi, M
A1  - Munro, PRT
JF  - Optics Letters
SN  - 0146-9592
UR  - https://doi.org/10.1364/OL.43.003874
ER  -