Phase-contrast X-ray imaging with synchrotron radiation for materials science applications

被引:54
作者
Stevenson, AW
Gureyev, TE
Paganin, D
Wilkins, SW
Weitkamp, T
Snigirev, A
Rau, C
Snigireva, I
Youn, HS
Dolbnya, IP
Yun, W
Lai, B
Garrett, RF
Cookson, DJ
Hyodo, K
Ando, M
机构
[1] CSIRO, Mfg & Infrastruct Technol, Clayton, Vic 3169, Australia
[2] Monash Univ, Sch Phys & Mat Engn, Clayton, Vic 3800, Australia
[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France
[4] Pohang Inst Sci & Technol, Pohang Accelerator Lab, POSTECH, Pohang 790600, South Korea
[5] Xradia, Concord, CA 94520 USA
[6] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
[7] Australian Nucl Sci & Technol Org, Australian Synchrotron Res Program, Menai, NSW 2234, Australia
[8] Inst Mat Struct Sci, Photon Factory, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
关键词
phase contrast; X-ray imaging; coherence; X-ray optics;
D O I
10.1016/S0168-583X(02)01557-4
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Since Rontgen's discovery of X-rays just over a century ago the vast majority of radiographs have been collected and interpreted on the basis of absorption contrast and geometrical (ray) optics. Recently the possibility of obtaining new and complementary information in X-ray images by utilizing phase-contrast effects has received considerable attention, both in the laboratory context and at synchrotron sources (where much of this activity is a consequence of-the highly coherent X-ray beams which can be produced). Phase-contrast X-ray imaging is capable of providing improved information from weakly absorbing features in a sample, together with improved edge definition. Four different experimental arrangements for achieving phase contrast in the hard X-ray regime, for the purpose of non-destructive characterization of materials, will be described. Two of these, demonstrated at ESRF in France and AR in Japan, are based on parallel-beam geometry; the other two, demonstrated at PLS in Korea and APS in USA, are based on spherical-beam geometry. In each case quite different X-ray optical arrangements were used. Some image simulations will be employed to demonstrate salient features of hard X-ray phase-contrast imaging and examples. of results from each of the experiments will be shown. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:427 / 435
页数:9
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