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Phase retrieval in quantitative x-ray microtomography with a single sample-to-detector distance
Chen, R. C(陈荣昌).; Xie, H. L.(谢红兰); Rigon, L.; Longo, R.; Castelli, E.; Xiao, T. Q.(肖体乔)
2011
Source PublicationOPTICS LETTERS
ISSN0146-9592
Volume36Issue:9Pages:1719
AbstractPhase retrieval extracts quantitative phase information from x-ray propagation-based phase-contrast images. Notwithstanding inherent approximations, phase retrieval using a single sample-to-detector distance (SDD) is very attractive, because it imposes no setup complications or additional radiation dose compared to absorption-based imaging. Considering the phase-attenuation duality (epsilon = delta/beta, where epsilon is constant), a simple absorption correction factor is proposed for the modified Bronnikov algorithm in x-ray propagation-based phase-contrast computed tomography (PPCT). Moreover, a practical method for calculating the optimal epsilon value is proposed, which requires no prior knowledge of the sample. Tests performed on simulation and experimental data successfully distinguished different materials in a quasihomogeneous and weakly absorbing sample from a single SDD-PPCT data point. (C) 2011 Optical Society of America
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000290037300065
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/12872
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Chen, R. C,Xie, H. L.,Rigon, L.,et al. Phase retrieval in quantitative x-ray microtomography with a single sample-to-detector distance[J]. OPTICS LETTERS,2011,36(9):1719.
APA Chen, R. C,Xie, H. L.,Rigon, L.,Longo, R.,Castelli, E.,&Xiao, T. Q..(2011).Phase retrieval in quantitative x-ray microtomography with a single sample-to-detector distance.OPTICS LETTERS,36(9),1719.
MLA Chen, R. C,et al."Phase retrieval in quantitative x-ray microtomography with a single sample-to-detector distance".OPTICS LETTERS 36.9(2011):1719.
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