Grating-based X-ray phase contrast imaging using polychromatic laboratory sources

	Grating-based X-ray phase contrast imaging using polychromatic laboratory sources
	Wang ZL(王志立); Zhu PP(朱佩平); Yuan QX(袁清习); Huang WX(黄万霞); Zhang K(张凯); Hong YL(洪友丽); Wu ZY(吴自玉); Wang, ZL; Gao, K; Zhu, PP
刊名	JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
	2011
卷号	184 期号:3-6 页码:342-345
关键词	X-ray imaging Phase contrast Talbot-Lau interferometer Polychromatic
通讯作者	[Wang, Zhili ; Zhu, Peiping ; Yuan, Qingxi ; Huang, Wanxia ; Zhang, Kai ; Hong, Youli ; Wu, Ziyu] Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Gao, Kun ; Ge, Xin ; Wu, Ziyu] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China
英文摘要	X-ray phase contrast imaging has been demonstrated to have an improved contrast over conventional absorption imaging for those weakly absorbing objects. However, most of the hard X-ray phase-sensitive imaging has so far been impractical with laboratory available X-ray sources. Grating-based phase imaging approach has the prominent advantage that polychromatic laboratory X-ray generators can be efficiently used in a Talbot-Lau configuration. Through numerical simulations, we demonstrate here the efficient use of polychromatic X-ray laboratory sources for differential phase contrast imaging. The presented results explain why in recently reported experiments, polychromatic X-ray tubes could be efficiently used in a Talbot-Lau interferometer. Furthermore, the results indicate that the fractional Talbot distance is not limited by the polychromaticity of the X-ray source. Since the sensitivity of phase measurements is proportional to the fractional Talbot distance, the image quality for phase measurements can be further improved. Finally, the potential optimizations of the imaging system are discussed from an application perspective, taking into consideration both available X-ray flux and compactness of the system. (C) 2010 Elsevier B.V. All rights reserved.
学科主题	Spectroscopy
类目[WOS]	Spectroscopy
研究领域[WOS]	Spectroscopy
原文出处	SCI
语种	英语
WOS记录号	WOS:000292173400060
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/237066]
专题	高能物理研究所_多学科研究中心
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,Yuan QX,et al. Grating-based X-ray phase contrast imaging using polychromatic laboratory sources[J]. JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA,2011,184(3-6):342-345.
APA	王志立.,朱佩平.,袁清习.,黄万霞.,张凯.,...&Wu, ZY.(2011).Grating-based X-ray phase contrast imaging using polychromatic laboratory sources.JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA,184(3-6),342-345.
MLA	王志立,et al."Grating-based X-ray phase contrast imaging using polychromatic laboratory sources".JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 184.3-6(2011):342-345.