Report
Rejection of randomly coinciding 2{\nu}2{\beta} events in ZnMoO4 scintillating bolometers
| العنوان: | Rejection of randomly coinciding 2{\nu}2{\beta} events in ZnMoO4 scintillating bolometers |
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| المؤلفون: | Chernyak, D. M., Danevich, F. A., Giuliani, A., Mancuso, M., Nones, C., Olivieri, E., Tenconi, M., Tretyak, V. I. |
| سنة النشر: | 2013 |
| المجموعة: | Nuclear Experiment Physics (Other) |
| مصطلحات موضوعية: | Physics - Instrumentation and Detectors, Nuclear Experiment |
| الوصف: | Random coincidence of 2{\nu}2{\beta} decay events could be one of the main sources of background for 0{\nu}2{\beta} decay in cryogenic bolometers due to their poor time resolution. Pulse-shape discrimination by using front edge analysis, the mean-time and \c{hi}2 methods was applied to discriminate randomly coinciding 2{\nu}2{\beta} events in ZnMoO4 cryogenic scintillating bolometers. The background can be effectively rejected on the level of 99% by the mean-time analysis of heat signals with the rise time about 14 ms and the signal-to-noise ratio 900, and on the level of 98% for the light signals with 3 ms rise time and signal-to-noise ratio of 30 (under a requirement to detect 95% of single events). Importance of the signal-to-noise ratio, correct finding of the signal start and choice of an appropriate sampling frequency are discussed. Comment: Contribution to Proc. of Int. Workshop on Radiopure Scintillators RPSCINT 2013, 17-20.09.2013, Kyiv, Ukraine; to be published in EPJ Web of Conferences; 4 pages, 6 figures, and 1 table |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1051/epjconf/20136504002 |
| URL الوصول: | http://arxiv.org/abs/1312.0246 |
| رقم الانضمام: | edsarx.1312.0246 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1051/epjconf/20136504002 |
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