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負ミュオンを用いた小惑星リュウグウ試料の元素分析

Elemental analysis for Asteroid Ryugu samples using negative muon

大澤 崇人  

Osawa, Takahito

小惑星探査機はやぶさ2が地球に持ち帰った小惑星リュウグウ試料の分析にミュオンを応用すべく進めた研究開発によって、負ミュオンを用いた元素分析法は著しい進展を遂げた。本稿ではJ-PARCにて行われたリュウグウ試料の分析に関して、装置開発から分析結果までを概説する。

Elemental analysis using negative muons has made remarkable progress as a result of the research and development for the application of muons to the analysis of samples brought back to earth by the Hayabusa-2. This paper describes the analysis of Ryugu samples at J-PARC, from the development of the instrument to the analysis results.

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