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. With this detector, we aim for a 130Te 0νββ decay half-life sensitivity of 9×1025 y with 5 y of live time, and a background index of ≲10−2 counts/keV/kg/y. Making an effort to maintain radiopurity by minimizing the bolometers' exposure to radon gas during their installation in the cryostat, we perform all operations inside a dedicated cleanroom environment with a controlled radon-reduced atmosphere. In this paper, we discuss the design and performance of the CUORE Radon Abatement System and cleanroom, as well as a system to monitor the radon level in real time.
@article{arxiv.1711.07936,
title = {Radon mitigation during the installation of the CUORE $0\nu\beta\beta$ decay detector},
author = {G. Benato and D. Biare and C. Bucci and L. Di Paolo and A. Drobizhev and R. W. Kadel and Yu. G. Kolomensky and J. Schreiner and V. Singh and T. Sipla and J. Wallig and S. Zimmermann},
journal= {arXiv preprint arXiv:1711.07936},
year = {2018}
}