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An innovative bolometric Cherenkov-light detector for a double beta decay search
Novati, V.1; Artusa, D.R.2,3; Avignone, F.T.3; Beeman, J.W.4; Dafinei, I.5; Dumoulin, L.1; Ge, Z.6; Giuliani, A.1,7; Gotti, C.8; de Marcillac, P.1; Marnieros, S.1; Nagorny, S.2,9; Nisi, S.2; Nones, C.10; Norman, E.B.11; Olivieri, E.1; Orlandi, D.2; Pagnanini, L.2,9; Pattavina, L.2; Pessina, G.8; Pirro, S.2; Poda, D.V.1,12; Rusconi, C.8; Schäffner, K.2,9; Scielzo, N.D.13; Zhu, Y.6
2018
Source PublicationNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ISSN01689002
Volume912Pages:82-84
AbstractWe present here an innovative cryogenic light detector capable to measure a few tens of eV signal thanks to the amplification assisted by the Neganov–Luke effect. The thermal signal boost in the presence of an electric field allows us to improve the signal-to-noise ratio reaching a baseline noise of around 20 eV. This device – coupled to an enriched 130TeO2 bolometer (435 g) – registered 160 eV Cherenkov light signal induced by 2615 keV 208Tl with a signal to noise ratio about 6:1. Since α particles emitted in decays of natural radionuclides do not produce the Cherenkov radiation, we were able to achieve an efficient αγ separation in the region of interest for neutrinoless double beta decay of 130Te (Q-value is 2527 keV). Specifically, a rejection factor of 99.9% for α particles was obtained with a 98.3% acceptance of βγ events. The achieved α rejection efficiency is required to reduce the dominant α background in the follow-up of the CUORE experiment (CUPID), a ton-scale bolometric search with particle identification. © 2017 Elsevier B.V.
DOI10.1016/j.nima.2017.10.058
EI Accession Number20174804477580
EI KeywordsSignal to noise ratio
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25538
Collection中国科学院上海硅酸盐研究所
Affiliation1.CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay; 91405, France;
2.INFN — Laboratori Nazionali del Gran Sasso, Assergi (AQ); I-67100, Italy;
3.Department of Physics and Astronomy, University of South Carolina, Columbia; SC; 29208, United States;
4.Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley; CA; 94720, United States;
5.INFN — Sezione di Roma, Roma; I-00185, Italy;
6.Shanghai Institute of Ceramics — Chinese Academy of Science, Jiading district, Shanghai; 201800, China;
7.DISAT, Università dell'Insubria, Como; I-22100, Italy;
8.INFN — Sezione di Milano Bicocca, Milano; I-20126, Italy;
9.INFN — Gran Sasso Science Institute, L'Aquila; I-67100, Italy;
10.IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette; F-91191, France;
11.Department of Nuclear Engineering, University of California, Berkeley; CA; 94720, United States;
12.Institute for Nuclear Research, Kyiv; 03028, Ukraine;
13.Lawrence Livermore National Laboratory — Nuclear and Chemical Science Division, Livermore; CA; 94550, United States
Recommended Citation
GB/T 7714
Novati, V.,Artusa, D.R.,Avignone, F.T.,et al. An innovative bolometric Cherenkov-light detector for a double beta decay search[J]. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment,2018,912:82-84.
APA Novati, V..,Artusa, D.R..,Avignone, F.T..,Beeman, J.W..,Dafinei, I..,...&Zhu, Y..(2018).An innovative bolometric Cherenkov-light detector for a double beta decay search.Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment,912,82-84.
MLA Novati, V.,et al."An innovative bolometric Cherenkov-light detector for a double beta decay search".Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 912(2018):82-84.
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