Development of an emulsion imaging system for cosmic-ray muon radiography to explore the internal structure of a volcano, Mt. Asama
Development of an emulsion imaging system for cosmic-ray muon radiography to explore the internal structure of a volcano, Mt. Asama
复制标题
DOI：
10.1016/j.nima.2007.02.104
复制
发表时间：
2007-06-01
影响因子：
1.4
通讯作者：
Niwa, K.
中科院分区：
文献类型：
--
作者：
Tanaka, H. K. M.;Nakano, T.;Niwa, K.
研制了一种由乳化液云室组成的简单粒子探测系统，作为一种潜在的火山宇宙射线介子射线照相装置。本文描述了通过Maekake-yama山成功地进行了伽玛山内部结构的射线照相测量。我们对数据进行了分析，测定了kamama -yama的容重为2.25 +/-(0.06)(0.04)g cm（-3）。利用山的密度值，我们确定了火山口浅层区域（在火山口边缘和边缘以下100 m之间的地方）的体积占用率为8.1(-8.1)(+45.9)%。我们讨论了无功率射线成像装置在了解和监测火山活动方面的未来前景。(C) 2007 Elsevier B.V.版权所有
A simple particle detection system comprising an emulsion cloud chamber was developed as a potential apparatus for cosmic-ray muon radiography of a volcano. A successful radiographic measurement of the internal structure of Mt. Kama-yama through Mt. Maekake-yama is described. We analyzed the data and the bulk density of 2.25 +/-(0.06)(0.04) g cm(-3) was determined in Kama-yama. Using the value of the density of the mountain, we confirmed that the volume occupancy in the shallow region of a crater (at a place between the crater rim and 100 m below the rim) is 8.1(-8.1)(+45.9)%. We discuss the future perspective of the power-free radiographic imaging device for understanding and monitoring volcanic activity. (C) 2007 Elsevier B.V. All rights reserved.