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题名:
Nondestructive material characterization of meteorites with synchrotron-based high energy x-ray phase micro-computed tomography
作者: Liu, HQ; Xiao, TQ; Xie, HL; Fu, YN; Zhang, XL; Fan, XX
刊名: JOURNAL OF PHYSICS D-APPLIED PHYSICS
出版日期: 2017
卷号: 50, 期号:5, 页码:-
关键词: phase-sensitive micro-tomograpgy ; synchrotron radiation ; phase retrieval ; meteorites ; density resolution
DOI: 10.1088/1361-6463/aa4f31
文章类型: 期刊论文
英文摘要: Synchrotron radiation based x-ray propagation-based micro-computed tomography (SRPCT) has been widely used to nondestructively access 3D structural information in many fields in the last decade. However, for strongly absorbed objects with small density-differential compositions, conventional SRPCT technique fails in providing high-contrast images for visualization of objects characteristic information except edge-enhancements at interfaces or boundaries of samples. In this study, we successfully employed the SRPCT technique with phase retrieval, the high energy x-ray phase-attenuation-duality (PAD) algorithm, into nondestructive material characterization of invaluable meteorite samples due to the greatly enhanced phase-contrast of different bulk material areas, as compared to conventional SRPCT on equal dose basis. Our experimental results demonstrated the PAD-SRPCT technique is superior to conventional SRPCT technique to access density and structure distributions of different meteorite compositions with high density resolution, owing to the striking contrast-to-noise ratio (CNR). In addition, a new mass-density measurement method was presented to estimate the mass density of different compositions in the meteorite sample based on the calibration of the imaging system.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000392394000001
ISSN号: 0022-3727
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27396
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Liu, HQ,Xiao, TQ,Xie, HL,et al. Nondestructive material characterization of meteorites with synchrotron-based high energy x-ray phase micro-computed tomography[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2017-01-01,50(5):-.
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