Non-destructive observation of meteorite chips using quantitative analysis of optimized X-ray micro-computed tomography

被引：29
|
作者：
Uesugi, M. [1 ]
Uesugi, K. [2 ]
Oka, M. [1 ]
机构：
[1] Dept Earth & Space Sci, Osaka 5600043, Japan
[2] Japan Synchrotron Radiat Res Inst JASRI, Sayo, Hyogo 6795198, Japan
来源：
EARTH AND PLANETARY SCIENCE LETTERS | 2010年 / 299卷 / 3-4期
基金：
日本学术振兴会;
关键词：
X-ray CT; meteorite; CHONDRULES; MINERALOGY;
D O I：
10.1016/j.epsl.2010.09.016
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
A method for the non-destructive observation of extraterrestrial materials using X-ray computed tomography (CT) is discussed. This method allows to image texture of objects in meteorites without destructive methods of sample preparation. Quantitative analysis of X-ray CT data was achieved by measuring X-ray linear attenuation coefficients (LACs). The histogram of the LAC value provides information regarding the meteorite structure, such as the internal components and their chemical composition. The change of the signal-to-noise ratio (S/N ratio) of CT data is investigated by optimizing the CT measurement conditions. These results form an important baseline for the initial analysis of extraterrestrial materials. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：359 / 367
页数：9
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