Further Study on Noble Gases in Shock-Produced Diamond (〔希ガスの質量分析に関する特集〕)
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概要
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We measured noble gases in artificially shock-produced diamonds in order to examine the size effect of diamond grains on noble gas concentrations and to get the diffusion coefficients of noble gases in diamonds. Noble gases in diamonds were degassed by diffusion process at low temperature below 1700°C, while major degassing occurred at 1700-1900°C by the graphitization of diamonds. As the shock-produced diamonds contain large amounts of noble gases, the diffusion coefficients can be determined at low temperatures even for heavy noble gases. The diffusion coefficients of Ne, Ar and Kr have been estimated to be lower than 10-21 to 10-18 (cm2/sec) at 1000-1400°C.
- 日本質量分析学会の論文
著者
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MATSUDA JUN-ICHI
Department of Earth and Space Science, Graduate School of Science, Osaka University
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Matsuda Jun-ichi
Department Of Earth And Space Science Faculty Of Science Osaka University
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Yajima Haruaki
Department of Earth Sciences, Faculty of Science, Kobe University
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Matsuda Jun-ichi
Department of Earth Sciences, Faculty of Science, Kobe University
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