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SA0200009.pdf5.73 MB
titleNon-destructive three-dimensional analysis of MUSES-C samples by micro X-ray CT method using synchrotron radiation
Author(jpn)土山, 明; 中野, 司; 上杉, 健太朗
Author(eng)Tsuchiyama, Akira; Nakano, Tsukasa; Uesugi, Kentaro
Author Affiliation(jpn)大阪大学大学院理学研究科 宇宙地球科学専攻; 産業技術総合研究所 地質調査所; 高輝度光科学研究センター (JASRI) SPring-8
Author Affiliation(eng)Department of Earth and Space Science, Graduate School of Science, Osaka University; Geological Survey of Japan/AIST; SPring-8/JASRI
Issue Date2003-03
Institute of Space and Astronautical Science
Publication titleThe Institute of Space and Astronautical Science report. S.P.: The First Open Competition for the MUSES-C Asteroidal Sample Preliminary Examination Team
Start page135
End page157
Publication date2003-03
AbstractTwo MUSES-C analog samples and a CM2 meteorite (the Murray meteorite) were imaged three-dimensionally without breaking the samples by an X-ray CT system at SPring-8 with the spatial resolution of about 10 micrometers. Based on the empirical relation between the CT-values, f, of materials in CT images and their X-ray linear attenuation coefficient, mu. (f = 0.9 mu), we estimated materials in the samples from their CT-values with the aid of image analysis technique (CBC-MS analysis). As the analog samples are fine powders, three-dimensional textures were not examined. High-resolution system (about 1 micrometer spatial resolution) at SPring-8 is useful for such samples. We can successfully recognize chondrules and mineral grains three-dimensionally in the Murray meteorite. The present method is useful to describe three-dimensional structures of unknown samples without breaking samples by using CT-values. We believe that curation of MUSES-C samples will be made effectively.
Document TypeDepartmental Bulletin Paper
JAXA Category宇宙科学研究所

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