| Project/Area Number |
21540307
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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 |
KOIZUMI Mitsuo 独立行政法人日本原子力研究開発機構, 原子力基礎工学研究部門, 研究副主幹 (30354814)
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| Co-Investigator(Renkei-kenkyūsha) |
IIMURA Hideki 独立行政法人日本原子力研究開発機構, 原子力基礎工学研究部門, 研究主幹 (10343906)
GOTO Jun 新潟大学, アイソトープ総合センター, 助教 (90370395)
MATSUKI Seishi 立命館大学, 総合理工学研究機構, 客員研究員 (50037941)
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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 |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2011: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 原子核(実験) / 原子核物理 / 不安定核 / 核構造 / 核磁気モーメント / 動的自己核偏極 / DYNASP / レーザー / βNMR |
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| Research Abstract |
Dynamic Nuclear Self Polarization(DYNASP) was theoretically predicted by Dyakonov et al. The phenomenon is observed in III-V semiconductors below a critical temperature(Tc). When electrons are excited to the conduction band with linearly polarized light, the lattice nuclei are largely self-polarized through the contact hyperfine interaction between the electrons and the lattice nuclei. The DYNASP theory was generalized by taking account of the conduction electrons polarized with circularly polarized light. To examine the DYNASP phenomenon below 4 K, an apparatus has been developed. The system is applicable to-NMR experiments for samples containing unstable nuclei, and pulsed NMR experiments for samples of stable nuclei.
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