Quantitative analysis of fringe visibility in grating-based x-ray phase-contrast imaging

被引：1
|
作者：
Huang, Jianheng [1 ,2 ]
Lei, Yaohu [1 ]
Du, Yang [1 ]
Liu, Xin [1 ]
Guo, Jinchuan [1 ]
Li, Ji [1 ]
Niu, Hanben [1 ]
机构：
[1] Shenzhen Univ, Coll Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China
[2] Shenzhen Univ, Coll Informat Engn, Shenzhen 518060, Peoples R China
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2016年 / 33卷 / 01期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
TALBOT-LAU INTERFEROMETER; FABRICATION; EFFICIENCY;
D O I：
10.1364/JOSAA.33.000069
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The newly developed x-ray differential phase-contrast imaging technique has attracted increasing research interest. In this study, we quantitatively analyze the fringe visibility obtained in differential phase-contrast imaging. Numerical results of the visibility for polychromatic x rays with different structure heights of absorption gratings are shown and discussed. Furthermore, the fringe visibility of the nonabsorption grating approach is calculated, and based on the results, we conclude that this approach can potentially be applied for higher x-ray photon energies. These analytic results will be useful for designing a differential phase-contrast imaging system for different applications. (C) 2015 Optical Society of America
引用
收藏
页码：69 / 73
页数：5
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