Simulation framework for coherent and incoherent X-ray imaging and its application in Talbot-Lau dark-field imaging

被引：23

作者：

Ritter, Andre ^{[1
]}

Bartl, Peter ^{[1
]}

Bayer, Florian ^{[1
]}

Goedel, Karl C. ^{[1
]}

Haas, Wilhelm ^{[1
,2
]}

Michel, Thilo ^{[1
]}

Pelzer, Georg ^{[1
]}

Rieger, Jens ^{[1
]}

Weber, Thomas ^{[1
]}

Zang, Andrea ^{[1
]}

Anton, Gisela ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany

[2] Univ Erlangen Nurnberg, Pattern Recognit Lab LME, D-91058 Erlangen, Germany

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 19期

关键词：

Monte Carlo methods - C++ (programming language) - Inelastic scattering - Computer software - X ray analysis;

D O I：

10.1364/OE.22.023276

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A simulation framework for coherent X-ray imaging, based on scalar diffraction theory, is presented. It contains a core C++ library and an additional Python interface. A workflow is presented to include contributions of inelastic scattering obtained with Monte-Carlo methods. X-ray Talbot-Lau interferometry is the primary focus of the framework. Simulations are in agreement with measurements obtained with such an interferometer. Especially, the dark-field signal of densely packed PMMA microspheres is predicted. A realistic modeling of the microsphere distribution, which is necessary for correct results, is presented. The framework can be used for both setup design and optimization but also to test and improve reconstruction methods. (C) 2014 Optical Society of America

引用

页码：23276 / 23289

页数：14

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