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X-ray phase radiography and tomography with grating interferometry and the reverse projection technique
Wang, ZL; Gao, K; Ge, X; Wu, Z; Chen, H; Wang, SH; Zhu, PP; Yuan, QX; Huang, WX; Zhang, K; Wu, ZY;朱佩平; Yuan QX(袁清习); Huang WX(黄万霞); Zhang K(张凯); Wu ZY(吴自玉)
2013
发表期刊JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷号46期号:49页码:494003
摘要X-ray grating interferometry provides substantially increased contrast over conventional absorption-based imaging methods, and therefore new and complementary information. Compared with other phase-contrast imaging techniques, x-ray grating interferometry can overcome some of the problems that have impaired the applications of x-ray phase-contrast radiography and phase tomography. Recently, special attention has been paid to the development of quantitative phase retrieval methods, which is mandatory to perform x-ray phase tomography, to achieve material identification, to differentiate distinct tissues, etc. Typically, the phase-stepping approach has been utilized for phase retrieval in grating interferometry. This method requires a grating scanning and acquisition of multiple radiographic projections, and therefore is disadvantageous in terms of imaging speed and radiation damage. Here we present an innovative, highly sensitive approach, dubbed 'reverse projection' (RP), for quantitative phase retrieval. Compared with the phase-stepping approach, the present RP method abandons grating scanning completely, and thus is advantageous due to its much higher efficiency and the reduced radiation dose, without the degradation of reconstruction quality. This review presents a detailed explanation of the principle of the RP method. Both radiography and phase tomography experiments are performed to validate the RP method. We believe that this new technique will find widespread applications in biomedical imaging and in vivo studies.
学科领域Physics
DOI10.1088/0022-3727/46/49/494003
收录类别SCI
WOS记录号WOS:000327887500004
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被引频次:3[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/311005/224691
专题多学科研究中心
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GB/T 7714
Wang, ZL,Gao, K,Ge, X,et al. X-ray phase radiography and tomography with grating interferometry and the reverse projection technique[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2013,46(49):494003.
APA Wang, ZL.,Gao, K.,Ge, X.,Wu, Z.,Chen, H.,...&吴自玉.(2013).X-ray phase radiography and tomography with grating interferometry and the reverse projection technique.JOURNAL OF PHYSICS D-APPLIED PHYSICS,46(49),494003.
MLA Wang, ZL,et al."X-ray phase radiography and tomography with grating interferometry and the reverse projection technique".JOURNAL OF PHYSICS D-APPLIED PHYSICS 46.49(2013):494003.
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