| Project/Area Number |
19540300
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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 | Hiroshima University |
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Principal Investigator |
HAZAMA Ryuta Hiroshima University, 大学院・工学研究院, 講師 (00379299)
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| Co-Investigator(Kenkyū-buntansha) |
岸本 忠史 大阪大学, 理学研究科, 教授 (90134808)
佐久間 洋一 核融合科学研究所, 安全管理センター, 准教授 (30133119)
谷水 雅治 独立行政法人海洋研究開発機構, 高知コア研究所, 研究員 (20373459)
渡慶次 学 名古屋大学, 大学院・工学研究科, 准教授 (60311437)
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| Co-Investigator(Renkei-kenkyūsha) |
KISHIMOTO Tadafumi 大阪大学, 大学院・理学研究科, 教授 (90134808)
SAKUMA Yoichi 東京工業大学, 原子炉工学研究所, 特任教授 (30133119)
TANIMIZU Masaharu 独立行政法人海洋研究開発機構, 高知コア研究所, 研究員 (20373459)
TOKESHI Manabu 名古屋大学, 工学研究科, 准教授 (60311437)
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| Project Period (FY) |
2007 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 実験核物理 / 素粒子実験 / 化学工学 / 同位体分離 / マイクロ・ナノデバイス |
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| Research Abstract |
The double beta decay, which can study the absolute neutrino mass and its Majorana nature, is one of the most important research and we will start CANDLES experiment soon utilizing 300kg of CaF_2 crystals containing of ^<48>Ca with the highest Q-value among double beta decay nuclei. The calcium cannot be enriched by centrifugal and diffusion separations and electromagnetic separation costs much and its production is limited only for tens of grams. We developed chemical isotope separation by liquid-liquid extraction with crown-ether and obtained the highest separation factor of 1.012(2℃)～1.014(20℃) (about two times of Jepson's 1.008 and five times of resin's 1.003) and showed the validity of microchip for the extraction process by gas-liquid two phase isotope exchange reaction and micromixer for emulsification droplets.
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