Interdis ciplinary study on isotopic geochemistry and particle physics
| Project/Area Number |
21244086
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geochemistry/Astrochemistry
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| Research Institution | Hiroshima University |
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Principal Investigator |
HIDAKA Hiroshi 広島大学, 大学院・理学研究科, 教授 (10208770)
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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 |
¥45,760,000 (Direct Cost: ¥35,200,000、Indirect Cost: ¥10,560,000)
Fiscal Year 2011: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2010: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2009: ¥32,890,000 (Direct Cost: ¥25,300,000、Indirect Cost: ¥7,590,000)
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| Keywords | 中性子捕獲 / 同位体 / 消滅核種 / 天然原子炉 / 隕石 / ジルコン / 宇宙線 / 同位体分析 / 放射線分解 / 局所同位体分析 / 二重ベータ崩壊 |
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| Research Abstract |
The variable types of neutron capture reactions under the variable environmental conditions were found from the isotopic results of lunar surface materials, martian meteorites, gas-rich meteorites, stony meteorites having long cosmic-ray exposure ages, stony-iron meteorites, and the Oklo natural reactor samples. The quantitative characterization of the neutron capture reactions were performed from the isotopic shifts of^<150> Sm/^<149> Sm,^<156> Gd/^<155> Gd, and^<158> Gd/^<157> Gd in individual samples because of the large neutron capture cross sections of^<149> Sm,^<155> Gd and^<157> Gd.
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Report
(4 results)
Research Products
(70 results)
