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The CUORE Cryostat: A 1-Ton Scale Setup for Bolometric Detectors

Abstract

The cryogenic underground observatory for rare events (CUORE) is a 1-ton scale bolometric experiment whose detector consists of an array of 988 TeO\(_2\) crystals arranged in a cylindrical compact structure of 19 towers. This will be the largest bolometric mass ever operated. The experiment will work at a temperature around or below 10 mK. CUORE cryostat consists of a cryogen-free system based on pulse tubes and a custom high power dilution refrigerator, designed to match these specifications. The cryostat has been commissioned in 2014 at the Gran Sasso National Laboratories and reached a record temperature of 6 mK on a cubic meter scale. In this paper, we present results of CUORE commissioning runs. Details on the thermal characteristics and cryogenic performances of the system will be also given.

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Correspondence to C. Ligi.

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Ligi, C., Alduino, C., Alessandria, F. et al. The CUORE Cryostat: A 1-Ton Scale Setup for Bolometric Detectors. J Low Temp Phys 184, 590–596 (2016). https://doi.org/10.1007/s10909-015-1389-4

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Keywords

  • Cryogenic intrumentations
  • Neutrinoless double-beta decay
  • Bolometers