Development of an imaging method of the solid earth’s interior with high energy elementary particles for understanding volcanological and seismic phenomena

开发固体地球内部高能基本粒子成像方法，以了解火山和地震现象

• 批准号: 21200049
• 负责人: TANAKA Hiroyuki
• 金额: $ 19.8万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Innovative Areas (Research a proposed research project)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21200049/
• 关键词: 素粒子; ミュオン; 火山; 断層; ラジオグラフィー; ボアホール

By utilizing density dependent stopping powers of muons, we succeeded to image a volume of a volcano and a fracture zone of a seismic fault with higher resolution than possible with conventional seismic tomography. By developing a power-effective and assembly-type portable muon detector, the following goals were achieved: (1) a method to measure the mass movement inside a volcano three dimensionally before and after the eruption, and (2) a technology to investigate active faults by measuring a distribution and time-dependent changes in a density contrast of a fracture zone.

通过利用密度依赖的μ子阻止功率，我们成功地成像体积的火山和断裂带的地震断层具有更高的分辨率比可能与传统的地震层析成像。通过开发一种功率有效和组装型便携式μ介子探测器，实现了以下目标：（1）一种在喷发前后三维测量火山内部质量运动的方法，以及（2）一种通过测量断裂带密度对比度的分布和随时间变化来调查活动断层的技术。

项目成果

Possible space and power effective muon sensor module for imaging a volcano

用于火山成像的可能的空间和功率有效μ介子传感器模块

• 发表时间: 2010
• 期刊: Earth Planets and Space
• 影响因子: 3
• 作者: H.Taira;H.K.M.Tanaka
• 通讯作者: H.K.M.Tanaka

Muon spin radiography of sediments

沉积物的μ子自旋射线照相

• 发表时间: 2011
• 作者: N. Watanabe;Y. Kimura;A. Kouchi;T. Chigai;T. Hama;& V. Pirronello;Dawson W and Kawai G;桑原宏和;Hiroyuki K.M.Tanaka
• 通讯作者: Hiroyuki K.M.Tanaka

Cosmic muon imaging of hidden seismic fault zones: Rainwater permeation into the mechanical fractured zones in Itoigawa-Shizuoka Tectonic Line

隐藏地震断裂带的宇宙μ子成像：雨水渗透到糸鱼川-静冈构造线的机械断裂带

• 发表时间: 2011
• 期刊: Japan, Earth Planet. Sci. Lett.
• 作者: Hiroyuki K.M. Tanaka;Hiroshi Miyajima;Taro Kusagaya;Akimichi Taketa;Tomohisa Uchida;Manobu Tanaka
• 通讯作者: Manobu Tanaka

Cosmic-ray muon radiography of a volcano

火山的宇宙射线μ子射线照相

• 发表时间: 2010
• 作者: 河合剛太;牛田千里;清澤秀孔;片山俊明;堀田秀吾・藤田政博;Hiroyuki K.M. Tanaka
• 通讯作者: Hiroyuki K.M. Tanaka

Cosmic muon imaging of hidden seismic fault zones: the measurement of density variation by rainfall using cosmic ray

隐藏地震断层带的宇宙μ子成像：利用宇宙射线测量降雨造成的密度变化

• 发表时间: 2011
• 作者: Hiroyuki K.M. Tanaka;Hiroshi Miyajima;Taro Kusagaya;Akimichi Taketa;Tomohisa Uchida;Manobu Tanaka
• 通讯作者: Manobu Tanaka