The CUORE Cryostat: A 1-Ton Scale Setup for Bolometric Detectors
physics.ins-det
/ Authors
C. Ligi, C. Alduino, F. Alessandria, M. Biassoni, C. Bucci, A. Caminata, L. Canonica, L. Cappelli, N. I. Chott, S. Copello
and 18 more authors
A. D'Addabbo, S. Dell'Oro, A. Drobizhev, M. A. Franceschi, L. Gladstone, P. Gorla, T. Napolitano, A. Nucciotti, D. Orlandi, J. Ouellet, C. Pagliarone, L. Pattavina, C. Rusconi, D. Santone, V. Singh, L. Taffarello, F. Terranova, S. Uttaro
/ Abstract
The cryogenic underground observatory for rare events (CUORE) is a 1-ton scale bolometric experiment whose detector consists of an array of 988 TeO2 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.