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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
发表期刊JOURNAL OF SYNCHROTRON RADIATION
卷号22页码:786-795
通讯作者朱佩平 ; 吴自玉
文章类型Article
摘要A 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.
关键词diffraction enhanced imaging phase retrieval noise in imaging systems
学科领域Instruments & Instrumentation; Optics; Physics
DOI10.1107/S1600577515003616
收录类别SCI ; EI
WOS类目Instruments & Instrumentation ; Optics ; Physics, Applied
WOS记录号WOS:000353920300045
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228545
专题多学科研究中心
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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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