Sensitivity of laboratory based implementations of edge illumination X-ray phase-contrast imaging
Sensitivity of laboratory based implementations of edge illumination X-ray phase-contrast imaging
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DOI：
10.1063/1.4845015
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发表时间：
2013-12-09
影响因子：
4
通讯作者：
Olivo, A.
中科院分区：
文献类型：
--
作者：
Diemoz, P. C.;Hagen, C. K.;Olivo, A.
我们提出了一个理论和实验分析的角度灵敏度的边缘照明X射线相衬成像在其实施与传统的X射线源（有时被称为“编码孔径”的方法）。我们研究了实验室设置中遇到的多色性和有限源尺寸如何影响检测到的信号。我们还表明，灵敏度是独立的掩模的周期。实验图像的介绍和分析，证明，尽管简单的设置，高角度分辨率的几百纳米弧度可以获得。(C)2013 AIP Publishing LLC.
We present a theoretical and experimental analysis of the angular sensitivity of edge illumination X-ray phase-contrast imaging in its implementation with conventional X-ray sources (sometimes referred to as the "coded-aperture" method). We study how the polychromaticity and finite source dimensions encountered in laboratory-based setups affect the detected signal. We also show that the sensitivity is independent of the period of the masks. Experimental images are presented and analyzed, proving that, despite the simple setup, high angular resolutions of a few hundred nanoradians can be obtained. (C) 2013 AIP Publishing LLC.