Design of the cryogen-free cryogenic system for the CUORE experiment

Year: 2008

Authors: Nucciotti A., Schaeffer D., Alessandria F., Ardito R., Barucci M., Risegari L., Ventura G., Bucci C., Frossati G., Olcese M., Waard A.

Autors Affiliation: Dip. di Fisica G. Occhialini, Univ. di Milano-Bicocca, INFN Sez. di Milano-Bicocca, Milano, Italy; INFN Sez. di Milano dell\’INFN, Milano, Italy; Dip. di Ingegneria Strutturale, Politecnico di Milano, Milano, Italy; Dip. di Fisica, Univ. di Firenze, INFN Sez. di Firenze, Firenze, Italy; INFN Laboratori Nazionali del Gran Sasso, Assergi AQ, Italy; Leiden Cryogenics, Leiden, Netherlands; Dip. di Fisica, Univ. di Roma La Sapienza, INFN Sez. di Roma 1, Roma, Italy; Kamerlingh Onnes Laboratory, Leiden University, Leiden, Netherlands

Abstract: 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.


Volume: 151 (3-4 PART 2)      Pages from: 662  to: 668

KeyWords: Cryogenic system; Dilution refrigerator; Double beta decay; Pulse tube, Cooling; Cryogenics; Cryostats; Thermoanalysis; Tubes (components), Refrigerators
DOI: 10.1007/s10909-008-9723-8

Citations: 13
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