| Project/Area Number |
20540300
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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 | Japan Atomic Energy Agency |
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Principal Investigator |
SHIZUMA Toshiyuki Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究主幹 (50282299)
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| Co-Investigator(Kenkyū-buntansha) |
TOYOKAWA Hiroyuki 産業技術総合研究所, 計測フロンティア研究部門, 研究員 (80357582)
OHGAKI Hideaki 京都大学, エネルギー理工学研究所, 教授 (10335226)
NAKADA Hitoshi 千葉大学, 理学研究科, 教授 (80221448)
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| Co-Investigator(Renkei-kenkyūsha) |
HAYAKAWA Takehito 日本原子力研究開発機構, 量子ビーム応用研究部門, 研究主幹 (70343944)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 原子核構造 / 光核共鳴散乱 / レーザー逆コンプトンガンマ線 / 核共鳴散乱 |
|---|
| Research Abstract |
Nuclear resonance fluorescence measurements by using laser Compton scattering gamma rays have been carried out to explore the magnetic dipole (M1) structure in closed-shell nuclei and their neighbors. We have obtained the M1 strength distribution of iron nuclei which is necessary for evaluation of inelastic neutrino reaction rates. Furthermore, we have performed shell model calculations and elucidated that the M1 transitions above the excitation energy of 6 MeV are mainly caused by particle-hole excitation between f5/2 and f7/2 orbitals.
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