Development of a cooling system using 2-phase CO2 for advanced detectors

2014 Fiscal Year Final Research Report

• Project/Area Number: 24540312
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: High Energy Accelerator Research Organization
• 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)
• 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)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 粒子測定技術 / ２相ＣＯ２ / 冷却器

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.

Free Research Field

高エネルギー物理学