Analysis of surface absorbed dose in X-ray grating interferometry
Wang, ZL; Wu, Z; Gao, K; Wang, DJ; Chen, H; Wang, SH; Wu, ZY;吴自玉
刊名JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
2014
卷号196期号:SI页码:85-88
关键词X-ray imaging Phase contrast Grating interferometry Surface absorbed dose
学科分类Spectroscopy
DOI10.1016/j.elspec.2014.04.010
英文摘要X-ray phase contrast imaging using grating interferometry has shown increased contrast over conventional absorption imaging, and therefore the great potential of dose reduction. The extent of the dose reduction depends on the geometry of grating interferometry, the photon energy, the properties of the sample under investigation and the utilized detector. These factors also determine the capability of grating interferometry to distinguish between different tissues with a specified statistical certainty in a single raw image. In this contribution, the required photon number for imaging and the resulting surface absorbed dose are determined in X-ray grating interferometry, using a two-component imaging object model. The presented results confirm that compared to conventional radiography, phase contrast imaging using grating interferometry indeed has the potential of dose reduction. And the extent of dose reduction is strongly dependent on the imaging conditions. Those results provide a theoretical framework for dose estimation under given imaging conditions before experimental trials, and general guidelines for optimization of grating interferometry for those dose-sensitive applications. (C) 2014 Elsevier B.V. All rights reserved.
收录类别SCI
WOS记录号WOS:000345823400018
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225077
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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Wang, ZL,Wu, Z,Gao, K,et al. Analysis of surface absorbed dose in X-ray grating interferometry[J]. JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA,2014,196(SI):85-88.
APA Wang, ZL.,Wu, Z.,Gao, K.,Wang, DJ.,Chen, H.,...&Wu, ZY;吴自玉.(2014).Analysis of surface absorbed dose in X-ray grating interferometry.JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA,196(SI),85-88.
MLA Wang, ZL,et al."Analysis of surface absorbed dose in X-ray grating interferometry".JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 196.SI(2014):85-88.
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