Simulation study of phase retrieval for hard X-ray in-line phase contrast imaging

被引：0
|
作者：
Bin Yu
Xiang Peng
Jindong Tian
Hanben Niu
Luhong Diao
Hua Li
机构：
[1] Shenzhen University,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, Institute of Optoelectronics
[2] Tianjin University,State Key Laboratory of Precision Measuring Technology and Instruments
[3] Chinese Academy of Sciences,Key Laboratory of Intelligent Information Processing, Institute of Computing Technology
来源：
Science in China Series G: Physics, Mechanics and Astronomy | 2005年 / 48卷
关键词：
X-ray optics; phase contrast imaging; phase retrieval; angular spectrum; hard X-ray;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Two algorithms for the phase retrieval of hard X-ray in-line phase contrast imaging are presented. One is referred to as lterative Angular Spectrum Algorithm (IASA) and the other is a hybrid algorithm that combines IASA with TIE (transport of intensity equation). The calculations of the algorithms are based on free space propagation of the angular spectrum. The new approaches are demonstrated with numerical simulations. Comparisons with other phase retrieval algorithms are also performed. It is shown that the phase retrieval method combining the IASA and TIE is a promising technique for the application of hard X-ray phase contrast imaging.
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页码：450 / 458
页数：8
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