Analysis of polychromaticity effects in X-ray Talbot interferometer

	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
刊名	ANALYTICAL AND BIOANALYTICAL CHEMISTRY
	2010
卷号	397 期号:6 页码:2137-2141
关键词	Polychromaticity X-ray Talbot interferometer Fractional Talbot distance Self-image Visibility
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
英文摘要	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.
学科主题	Biochemistry & Molecular Biology; Chemistry
类目[WOS]	Biochemical Research Methods ; Chemistry, Analytical
研究领域[WOS]	Biochemistry & Molecular Biology ; Chemistry
原文出处	SCI
语种	英语
WOS记录号	WOS:000279453000013
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/239663]
专题	高能物理研究所_多学科研究中心高能物理研究所_加速器中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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.