Combined imaging system for X-ray fluorescence and transmission X-ray microtomography

被引：3

作者：

Ohigashi, T ^{[1
]}

Watanabe, N ^{[1
]}

Yokosuka, H ^{[1
]}

Aoki, S ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

来源：

SYNCHROTRON RADIATION INSTRUMENTATION | 2004年 / 705卷

关键词：

D O I：

10.1063/1.1758052

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A full-field imaging x-ray fluorescence computed microtomography system was designed for quantitative elemental analysis. An x-ray fluorescence imaging microscope combined with transmission x-ray microtomographic system was constructed at BL3C2 of the Photon Factory, KEK, Japan. The quasi-monochromatic beam produced by a double-multilayer monochromator was used as an incident beam. X-ray fluorescence images were obtained and were reconstructed by simultaneous algebraic reconstruction technique (SART) with taking into account of the self-absorption effects of the incident beam and the x-ray fluorescence of the sample. Distribution of Fe in a standard sample (1.60 mol/l FeCl2 solution in a capillary tube) was observed to evaluate the system. The density of Fe reconstructed without correction of the self-absorption effect was 9.26 % of the actual density. Using this correction method, 73.0 % of the actual density could be obtained.

引用

页码：1352 / 1355

页数：4

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