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	Polynomial curve fitting method for refraction-angle extraction in diffraction enhanced imaging
	Chen Zhi-Qiang ; Ding Fei ; Huang Zhi-Feng ; Zhang Li ; Yin Hong-Xia ; Wang Zhen-Chang ; Zhu Pei-Ping
	2010-10-12 ; 2010-10-12
关键词	diffraction enhanced imaging synchrotron radiation polynomial curve fitting PHASE INFORMATION CONTRAST TOMOGRAPHY ABSORPTION ANALYZER Physics, Nuclear Physics, Particles & Fields
中文摘要	X-ray diffraction enhanced imaging (DEI) is applied to inspect internal structures of weakly absorbing low-Z sample. How to extract phase information from raw images measured in different positions of rocking curve is the key problem of DEL In this paper, we present an effective extraction method called polynomial curve fitting method, in order to extract accurate information angular in a fast speed. It is compared with the existing methods such as multiple-images statistical method and Gaussian curve fitting method. The experiments results on a plastic cylinder and a black ant at the Beijing Synchrotron Radiation Facility prove that the polynomial curve fitting method can obtain most approximate refraction-angle values and its computation speed is 10 times faster than the Gaussian curve fitting method.
语种	英语 ; 英语
出版者	CHINESE PHYSICAL SOC ; BEIJING ; P O BOX 603, BEIJING 100080, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78859]
专题	清华大学
推荐引用方式 GB/T 7714	Chen Zhi-Qiang,Ding Fei,Huang Zhi-Feng,et al. Polynomial curve fitting method for refraction-angle extraction in diffraction enhanced imaging[J],2010, 2010.
APA	Chen Zhi-Qiang.,Ding Fei.,Huang Zhi-Feng.,Zhang Li.,Yin Hong-Xia.,...&Zhu Pei-Ping.(2010).Polynomial curve fitting method for refraction-angle extraction in diffraction enhanced imaging..
MLA	Chen Zhi-Qiang,et al."Polynomial curve fitting method for refraction-angle extraction in diffraction enhanced imaging".(2010).

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