Observation of Allende and Antarctic meteorites by monochromatic X-ray CT based on synchrotron radiation
スポンサーリンク
概要
- 論文の詳細を見る
Three-dimensional CT images of the Allende meteorite with a high resolution of 10μm have been obtained nondestructively by a monochromatic X-ray computed tomography (CT) based on synchrotron radiation (SR). The metallic minerals, matrix and chondrules can be clearly observed in the CT images. The CT values, which express the image intensity, allow a quantitative elemental analysis including such as difference in the metallic minerals, i. e., pentlandite and troilite, using the comparison of CT images and elemental images measured by a computer-aided microanalyzer (CMA). The three-dimensional CT images indicate that the metallic minerals surround some chondrules, and the largest chondrule has two humps and well crystallized olivine in its center. These observations suggest that the three-dimensional SR-CT system is a useful method for identification of internal structures of stony meteorites. Additionally, information obtained from the CT images of Antarctic meteorites confirms that the SR-CT system can be applied to classification of stony chondrites.
- 国立極地研究所の論文
著者
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Funaki Minoru
National Institute of Polar Research
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HAYAKAWA Kazunobu
Catalysis Research Center, Hokkaido University
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USAMI Katsuhisa
Hitachi Research Laboratory of Hitachi Ltd.
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Nagata Takesi
National Institute of Polar Research
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Hirano Tatsumi
Hitachi Research Laboratory, Hitachi, Ltd.
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Taguchi Isamu
National Museum of Japanese History
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Hamada Hiroki
R & D Laboratory, Analysis Research Laboratory, Nippon Steel Corporation
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Usami Katsuhisa
Hitachi Research Laboratory
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Hayakawa Kazunobu
Catalysis Research Center Hokkaido University
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Hirano Tatsumi
Hitachi Research Laboratory Hitachi Ltd.
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Hamada Hiroki
R & D Laboratory Analysis Research Laboratory Nippon Steel Corporation
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Funaki Minoru
National Inst. Of Polar Res. 9-10 Kaga 1 Itabashi Tokyo 173-8515 Jpn
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Usami Katsuhisa
Hitachi Research Laboratory, Hitachi, Ltd.
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