An innovative bolometric Cherenkov-light detector for a double beta decay search

doi:10.1016/j.nima.2017.10.058

	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
刊名	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
	2018
卷号	912 页码:82-84
ISSN号	01689002
DOI	10.1016/j.nima.2017.10.058
英文摘要	We 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.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25538]
专题	中国科学院上海硅酸盐研究所
作者单位	1.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;
推荐引用方式 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.