Progress on the CUORE cryogenic system
Authors: Martinez M., Alessandria F., Arnaboldi C., Barucci M., Bucci C., Frossati G., Nucciotti A., Schaeffer D., Sisti M., De Waard A., Woodcraft A.
Autors Affiliation: Universita di Milano-Bicocca, INFN Sez, Milano-Bicocca, Italy; INFNSez, Milano, Italy; INFN Sez, Firenze, Italy; INFN, Laboratori Nazionali del Gran Sasso, Italy; Leiden Cryogenics, Netherlands; Kamerlingh Onnes Laboratory, Leiden University, Netherlands; SUPA, University of Edinburgh, United Kingdom
Abstract: We give here an update on the CUORE cryogenic system, h consists of a large cryogen-free cryostat cooled by five pulse tubes and one high-power specially designed dilution refrigerator built by Leiden Cryogenics. The cryostat design has been completed and it is presently under construction. The site at the Gran Sasso Underground Laboratory is ready for the installation of the cryostat which is expected to begin by the end of 2009. We discuss here the preliminary results obtained on the performance of the mechanical cryorefrigerators. We also present a measurement of the residual heat leak of the copper which has been selected for the cryostat fabrication.
More Information: Sponsors: Stanford University, Physics Department; Hansen Experimental Physics Laboratory; Kavli Institute for Particle Astrophysics and Cosmology; Department of Energy, SLAC National Accelerator Center; National Science Foundation, NASAKeyWords: Bolometric detectors; Cryogenics; Pulse tubeDOI: 10.1063/1.3292436