東京大学 · 物理学・天文学
L. Oláh教授の研究室では、宇宙線ミューオンを用いた非破壊的地下構造探査技術、すなわちミュオグラフィーの開発と応用に注力しています。特に、噴火中の活火山における高解像度な内部密度分布の可視化を実現し、火山内部のマグマ溜まりの状態をリアルタイムでモニタリングする技術の確立を目指しています。また、野外環境に強く、低消費電力で動作するポータブルミュオン検出器の開発も進め、自然洞窟や地下トンネルの探査応用も視野に研究を展開しています。
Figures are computed from collected data and may differ slightly.
Muography is a novel method to highly resolve the internal structure of active volcanoes by taking advantage of the cosmic muon's strong penetration power. In this paper, we present the first high-definition image in the vicinity of craters of an erupting volcano called Sakurajima, Kyushu, Japan. The muography observation system based on the technique of multi-wire proportional chamber (mMOS) has been operated reliably during the data taking period of 157 days. The mMOS measured precisely the fl
Abstract. A portable cosmic muon detector has been developed for geophysical applications: searching for large scale underground rock/soil inhomogeneities and underground cavities. The designed muon telescope called a muon tomograph is based on the recently developed closed cathode chamber (CCC) technology, which provides a cheap, easy handling, portable, and power efficient detector system able to work even in extreme conditions (e.g. high humidity, low/high temperature). The muon telescope has
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