| Project/Area Number |
24540312
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 | High Energy Accelerator Research Organization |
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Principal Investigator |
SUGIMOTO Yasuhiro 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 講師 (70196757)
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| Co-Investigator(Renkei-kenkyūsha) |
HARUYAMA Tomiyoshi 東京大学, カブリ数物連携宇宙研究機構, 特任教授 (90181031)
FUJII Keisuke 高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (30181308)
TSUBOYAMA Tohru 高エネルギー加速器研究機構, 素粒子原子核研究所, 講師 (80188622)
KASAMI Katuyuu 高エネルギー加速器研究機構, 素粒子原子核研究所, 技師 (50391727)
FUSAYASU Takahiro 佐賀大学, 理工学部, 准教授 (70399210)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 粒子測定技術 / ２相ＣＯ２ / 冷却器 / 素粒子実験 / 低温工学 |
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| Outline of Final Research Achievements |
We have developed a detector cooling system using 2-phase CO2 as the coolant aiming at applications to state-of-the-art detectors for nuclear and particle physics experiments. In the 2-phase CO2, gas phase and liquid phase CO2 co-exist, and the large latent heat of CO2 is used for cooling. So far, 2-phase CO2 cooling system developed by other groups adopted liquid pumps for circulation of CO2. On the other hand, the cooling system we have developed adopts a gas compressor, which enables constructing the cooling system with much less cost. Using this cooling system, we have demonstrated the capability of cooling detectors between -40°C and +15°C.
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