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A novel crystal-analyzer phase retrieval algorithm and its noise property
Bao Y(鲍园); Wang Y(王研); Li PY(李盼云); Ju ZQ(鞠在强); Zhang K(张凯); Yuan QX(袁清习); Huang WX(黄万霞); Zhu PP(朱佩平); Wu ZY(吴自玉); Bao, Y; Wang, Y; Li, PY; Wu, Z; Shao, QG; Gao, K; Wang, ZL; Ju, ZQ; Zhang, K; Yuan, QX; Huang, WX; Zhu, PP; Wu, ZY
2015
Source PublicationJOURNAL OF SYNCHROTRON RADIATION
ISSN0909-0495
EISSN1600-5775
Volume22Pages:786-795
Corresponding Author朱佩平 ; 吴自玉
SubtypeArticle
AbstractA description of the rocking curve in diffraction enhanced imaging (DEI) is presented in terms of the angular signal response function and a simple multi-information retrieval algorithm based on the cosine function fitting. A comprehensive analysis of noise properties of DEI is also given considering the noise transfer characteristic of the X-ray source. The validation has been performed with synchrotron radiation experimental data and Monte Carlo simulations based on the Geant4 toolkit combined with the refractive process of X-rays, which show good agreement with each other. Moreover, results indicate that the signal-to-noise ratios of the refraction and scattering images are about one order of magnitude better than that of the absorption image at the edges of low-Z samples. The noise penalty is drastically reduced with the increasing photon flux and visibility. Finally, this work demonstrates that the analytical method can build an interesting connection between DEI and GDPCI (grating-based differential phase contrast imaging) and is widely suitable for a variety of measurement noise in the angular signal response imaging prototype. The analysis significantly contributes to the understanding of noise characteristics of DEI images and may allow improvements to the signal-to-noise ratio in biomedical and material science imaging.
Keyworddiffraction enhanced imaging phase retrieval noise in imaging systems
Subject AreaInstruments & Instrumentation; Optics; Physics
DOI10.1107/S1600577515003616
Indexed BySCI ; EI
Language英语
WOS Research AreaInstruments & Instrumentation ; Optics ; Physics, Applied
WOS SubjectInstruments & Instrumentation ; Optics ; Physics
WOS IDWOS:000353920300045
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Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228545
Collection多学科研究中心
Recommended Citation
GB/T 7714
Bao Y,Wang Y,Li PY,et al. A novel crystal-analyzer phase retrieval algorithm and its noise property[J]. JOURNAL OF SYNCHROTRON RADIATION,2015,22:786-795.
APA 鲍园.,王研.,李盼云.,鞠在强.,张凯.,...&Wu, ZY.(2015).A novel crystal-analyzer phase retrieval algorithm and its noise property.JOURNAL OF SYNCHROTRON RADIATION,22,786-795.
MLA 鲍园,et al."A novel crystal-analyzer phase retrieval algorithm and its noise property".JOURNAL OF SYNCHROTRON RADIATION 22(2015):786-795.
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