Particle discrimination in TeO2 bolometers

Casali, N. and Beeman, J. W. and Bellini, F. and Cardani, L. and Dafinei, I. and Di Domizio, S. and Ferroni, F. and Orio, F. and Pessina, G. and Piperno, G. and Pirro, S. and Tomei, C. and Vignati, M. (2013) Particle discrimination in TeO2 bolometers. Il nuovo cimento C, 36 (1). pp. 57-60. ISSN 1826-9885

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TeO2 crystals are used as bolometric detectors in experiments searching for the neutrinoless double beta decay. The extreme rarity of the studied signal requires an ultra low background level. The natural radioactivity of the materials represents for these experiments the main background source, in particular the component due to α particles. In this work, we present a possibility for particle discrimination in TeO2 bolometers using the ˇCerenkov radiation. The results show that we are able to measure the light produced by β/γ particles, which can be explained as due to ˇCerenkov emission. No light is detected from α particles, allowing the rejection of this background source.

Item Type: Article
Uncontrolled Keywords: Neutrino mass and mixing ; Bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors ; β decay; double β decay; electron and muon capture ; Cherenkov detectors
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 02 May 2020 14:23
Last Modified: 02 May 2020 14:23

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