プレソーラー粒子の238U/232Th比および238U/235U比の測定に向けた極微量U・Th同位体測定技術の開発

渡辺 龍哉; 横山 哲也

doi:10.14862/geochemproc.59.0.258.0

Abstracts of Annual Meeting of the Geochemical Society of Japan

Session ID : 2P49

DOI https://doi.org/10.14862/geochemproc.59.0.258.0

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Host: Abstracts of Annual Meeting of the Geochemical Society of Japan

Development of the determination of 238U/232Th and 238U/235U ratios in extremely low U and Th abundance samples for the study of galactic chemical evolution using presolar grains

*Tatsuya Watanabe, Tetsuya Yokoyama

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Keywords: presolar grains, nucleosynthesis, TIMS, uranium, thorium

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