X-ray Microtomography Using Synchrotron Radiation and its Application to Meteorites and Cosmic Dust

被引：0

作者：

Tsuchiyama, Akira ^{[1
]}

Uesugi, Kentaro ^{[2
]}

Nakano, Tsukasa ^{[3
]}

机构：

[1] Osaka Univ, Grad Sch Sci, Dept Earth & Space Sci, 1-1 Machikaneyama Cho, Toyonaka, Osaka 5600043, Japan

[2] JASRI SPring8, Sayo, Hyogo, Japan

[3] AIST, GSJ, Tokyo, Japan

来源：

INTERNATIONAL JOURNAL OF MICROGRAVITY SCIENCE AND APPLICATION | 2005年 / 22卷 / 02期

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中图分类号：

O59 [应用物理学];

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摘要：

A projection microtomographic system using synchrotron radiation with the spatial resolution of about 1 pm has been developed at SPring-8. The quantitative relation between CT-values and linear attenuation coefficients of materials has been obtained empirically in this system. Materials (minerals) can be estimated from the CT values using this relation. The relation also made possible to obtain three-dimensional concentration distributions of some elements by subtraction method. The microtomographic system was applied to extraterrestrial samples, such as meteorites and cosmic dust. This system is also useful to samples those will be returned by spacecrafts in the Hayabusa mission by JAXA and Stardust mission by NASA.

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页码：116 / 120

页数：5

共 11 条

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