Eur. Phys. J. C (2018) 78: 428
https://doi.org/10.1140/epjc/s10052-018-5896-8

Special Article - Tools for Experiment and Theory

CUPID-0: the first array of enriched scintillating bolometers for 0 decay investigations

¹ Present address: INFN, Laboratori Nazionali di Legnaro, 35020, Legnaro, Padua, Italy
² Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
³ Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy
⁴ INFN, Sezione di Roma, 00185, Rome, Italy
⁵ Dipartimento di Fisica, Università di Milano-Bicocca, 20126, Milan, Italy
⁶ INFN, Sezione di Milano Bicocca, 20126, Milan, Italy
⁷ INFN, Laboratori Nazionali del Gran Sasso, Assergi, 67010, L’Aquila, Italy
⁸ Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
⁹ Dipartimento di Fisica, Università di Genova, 16146, Genoa, Italy
¹⁰ INFN, Sezione di Genova, 16146, Genoa, Italy
¹¹ CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405, Orsay, France
¹² DiSAT, Università dell’Insubria, 22100, Como, Italy
¹³ Gran Sasso Science Institute, 67100, L’Aquila, Italy
¹⁴ CEA-Saclay, DSM/IRFU, 91191, Gif-sur-Yvette Cedex, France
¹⁵ Department of Physics and Astronomy, University of South Carolina, Columbia, SC, 29208, USA
¹⁶ Present address: Max-Planck-Institut fur Physik, 80805, Munich, Germany
¹⁷ Present address: Institut fur Hochenergiephysik der AW, 1050, Wien, Austria
¹⁸ Present address: Atominstitut, Technical University Vienna, 1020, Wien, Austria

^* e-mail: luca.pattavina@gssi.it

Received: 1 March 2018
Accepted: 14 May 2018
Published online: 29 May 2018

Abstract

The CUPID-0 detector hosted at the Laboratori Nazionali del Gran Sasso, Italy, is the first large array of enriched scintillating cryogenic detectors for the investigation of Se neutrinoless double-beta decay (). CUPID-0 aims at measuring a background index in the region of interest (RoI) for at the level of 10 counts/(keV kg years), the lowest value ever measured using cryogenic detectors. CUPID-0 operates an array of ZnSe scintillating bolometers coupled with bolometric light detectors, with a state of the art technology for background suppression and thorough protocols and procedures for the detector preparation and construction. In this paper, the different phases of the detector design and construction will be presented, from the material selection (for the absorber production) to the new and innovative detector structure. The successful construction of the detector lead to promising preliminary detector performance which is discussed here.