Design of the Cryogen-Free Cryogenic System for the CUORE Experiment
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We present here the final design of the cryogenic system where the CUORE detector will be installed in 2010. It is a large cryogen-free cryostat cooled by pulse tubes and by a high-power dilution refrigerator. To avoid radioactive background, about 15000 kg of lead will be cooled to below 1 K and only few construction materials are acceptable. The detector assembly will have a total mass of about 1500 kg and must be cooled to less than 10 mK in a vibration-free environment. We discuss the adopted technical solutions, the results of the preliminary thermal analysis of the system, and its expected performance.
KeywordsDilution refrigerator Pulse tube Cryostat Double beta decay
PACS07.20.Mc 07.57.Kp 07.10.Fq 11.30.F
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