Augmenting a conventional X-ray scanner with edge illumination-based phase contrast imaging: how to design the gratings?

被引：5
作者：
Sanctorum, Jonathan [1 ,2 ]
Six, Nathanael [1 ,2 ]
Sijbers, Jan [1 ,2 ]
De Beenhouwer, Jan [1 ,2 ]
机构：
[1] Univ Antwerp, Dept Phys, IMEC, Vis Lab, Antwerp, Belgium
[2] DynXlab, Ctr 4D Quantitat Xray Imaging & Anal, Antwerp, Belgium
来源：
DEVELOPMENTS IN X-RAY TOMOGRAPHY XIV | 2022年 / 12242卷
关键词：
simulation; X-rays; phase contrast; grating; system design; computed tomography; SIMULATION; CT;
D O I：
10.1117/12.2633455
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Edge illumination is an emerging X-ray phase contrast imaging technique, which has been successfully transferred from synchrotron facilities to lab-based X-ray systems. Rather than installing a dedicated phase contrast system, our goal is to enable phase contrast imaging in a highly flexible X-ray CT system, FleXCT, a novel scanning system consisting of ten motorized axes. These axes allow movements of not only the sample stage, but also the source and detector. To enable phase contrast imaging, two gratings have to be incorporated in the FleXCT system. In this work, we report on the procedure to determine the optimal grating parameters, relying on numerical simulations. Optimal parameter values are presented for both FleXCT gratings.
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页数：6
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