| Project/Area Number |
21540293
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HORIUCHI Kazuho 弘前大学, 理工学研究科, 助教 (00344614)
IWATA Naoyoshi 山形大学, 理学部, 講師 (70302289)
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUZAKI Hiroyuki 東京大学, 大学院・工学系研究科, 准教授 (60313194)
DOSHITA Norihiro 山形大学, 理学部, 助教 (90451658)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 宇宙線永年変動 / ミューオン / 宇宙線生成核種 / Be-10 / 地下深部岩石 / 宇宙線 / 生成核種 / 高エネルギーミューオン / Be-10, Al-26 / 花崗岩 / AMS測定 / Be-10,Al-26,Be-7 / 鉱物分離 / ビーム照射 |
|---|
| Research Abstract |
The rocks in deep underground are exposed by high energy muon for long time and record an accumulation of muon induced cosmogenic nuclides of Be-10 and Al-26. We have measured the cross-sections of production rates of Be-10 and Al-26 for SiO2 plates using the muon beam with the energy of 160 Gev/c at CERN. Also, the efficiency was investigated for the extraction of SiO2 from granite rocks.
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