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Analysis of polychromaticity effects in X-ray Talbot interferometer
Wang ZL(王志立); Zhu PP(朱佩平); Huang WX(黄万霞); Yuan QX(袁清习); Liu XS(刘小松); Zhang K(张凯); Hong YL(洪友丽); Zhang HT(张慧滔); Wu ZY(吴自玉); Wang, ZL; Zhu, PP; Huang, WX; Yuan, QX; Liu, XS; Zhang, K; Hong, YL; Zhang, HT; Ge, X; Gao, K; Wu, ZY
2010
发表期刊ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷号397期号:6页码:2137-2141
通讯作者[Wang, Zhili ; Zhu, Peiping ; Huang, Wanxia ; Yuan, Qingxi ; Liu, Xiaosong ; Zhang, Kai ; Hong, Youli ; Zhang, Huitao ; Wu, Ziyu] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Ge, Xin ; Gao, Kun ; Wu, Ziyu] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China
摘要The influence of polychromaticity of the X-ray source on the performance of an X-ray Talbot interferometer applied for phase-contrast imaging is analyzed through numerical simulations based on the Fresnel diffraction theory. The presented simulation results show that the visibility of the self-image is fairly insensitive to the source polychromaticity and explain why the interferometer could be well combined with polychromatic X-ray sources in recent experiments. Furthermore, the self-image with a high visibility can be obtained under polychromatic illumination even at a high-order fractional Talbot distance. This fact implies that the acquired image quality for phase measurements can be improved, since the primary signal for phase measurement is proportional to the inter-grating distance. Finally, we mention that the results are also valid for Talbot-Lau interferometer and scanning double-grating configuration.
文章类型Article
关键词Polychromaticity X-ray Talbot interferometer Fractional Talbot distance Self-image Visibility
学科领域Biochemistry & Molecular Biology; Chemistry
DOI10.1007/s00216-010-3640-9
研究领域[WOS]Biochemistry & Molecular Biology ; Chemistry
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语种英语
WOS类目Biochemical Research Methods ; Chemistry, Analytical
WOS记录号WOS:000279453000013
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239663
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Wang ZL,Zhu PP,Huang WX,et al. Analysis of polychromaticity effects in X-ray Talbot interferometer[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY,2010,397(6):2137-2141.
APA 王志立.,朱佩平.,黄万霞.,袁清习.,刘小松.,...&Wu, ZY.(2010).Analysis of polychromaticity effects in X-ray Talbot interferometer.ANALYTICAL AND BIOANALYTICAL CHEMISTRY,397(6),2137-2141.
MLA 王志立,et al."Analysis of polychromaticity effects in X-ray Talbot interferometer".ANALYTICAL AND BIOANALYTICAL CHEMISTRY 397.6(2010):2137-2141.
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