Ultralow-Radon Environment for the Installation of the CUORE 0&[nu]ββ Decay Detector
ORAL
Abstract
CUORE—the Cryogenic Underground Observatory for Rare Events—is an experiment searching for the neutrinoless double-beta (0νββ) decay of 130Te with an array of 988 TeO2 crystals operated as bolometers at ~10 mK in a large dilution refrigerator. To achieve our target 130Te 0νββ decay half-life sensitivity of 9×1025 y with 5 y of live time, we seek to minimize backgrounds. To avoid the recontamination of the detector via exposure to radon gas during its installation in the cryostat, we perform all operations inside a dedicated cleanroom environment with a controlled ultralow-radon atmosphere. In this talk, I discuss the design and performance of the CUORE Radon Abatement System and cleanroom, as well as real time radon level monitoring.
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Presenters
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Alexey Drobizhev
Nuclear Science Division, Lawrence Berkeley National Laboratory, Physics, University of California, Berkeley, Berkeley, CA, United States, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Lawrence Berkeley Natl Lab
Authors
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Alexey Drobizhev
Nuclear Science Division, Lawrence Berkeley National Laboratory, Physics, University of California, Berkeley, Berkeley, CA, United States, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Lawrence Berkeley Natl Lab