The Cryogenic Underground Observatory for Rare Events (CUORE) is a 1-ton scale bolometric experiment. The CUORE detector is an array of 988 TeO2crystals arranged in a cylindrical compact structure of 19 towers. This will be by far the largest bolometric mass ever operated. These detectors need a base temperature around 10 mK in order to meet the performance specifications. To cool the CUORE detector a large cryogenic-free cryostat with five pulse tubes and one custom high-power dilution refrigerator has been designed. The cryostat (4 K refrigerator with pulse tubes) and dilution unit were first tested independently and then merged together. We report here a detailed description of the cryostat for the CUORE experiment together with the results of the validation tests done in 2014.
Chott, N., Alessandria, F., Bucci, C., Gorla, P., Cappelli, L., Pagliarone, C., et al. (2014). Commissioning of the CUORE cryostat: The first experimental setup for bolometric detectors at the 1 ton scale. In Proceedings of Science. Proceedings of Science (PoS).
Commissioning of the CUORE cryostat: The first experimental setup for bolometric detectors at the 1 ton scale
Nucciotti, A;Terranova, F;
2014
Abstract
The Cryogenic Underground Observatory for Rare Events (CUORE) is a 1-ton scale bolometric experiment. The CUORE detector is an array of 988 TeO2crystals arranged in a cylindrical compact structure of 19 towers. This will be by far the largest bolometric mass ever operated. These detectors need a base temperature around 10 mK in order to meet the performance specifications. To cool the CUORE detector a large cryogenic-free cryostat with five pulse tubes and one custom high-power dilution refrigerator has been designed. The cryostat (4 K refrigerator with pulse tubes) and dilution unit were first tested independently and then merged together. We report here a detailed description of the cryostat for the CUORE experiment together with the results of the validation tests done in 2014.
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