Publication:
Alpha backgrounds in the AMoRE-Pilot experiment

Дата
2022
Авторы
Alenkov, V.
Bae, H. W.
Beyer, J.
Boiko, R. S.
Kornoukhov, V.
Toibaev, N.
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Научные группы
Организационные подразделения
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Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
Выпуск журнала
Аннотация
The Advanced Mo-based Rare process Experiment (AMoRE)-Pilot experiment is an initial phase of the AMoRE search for neutrinoless double beta decay of 100Mo, with the purpose of investigating the level and sources of backgrounds. Searches for neutrinoless double beta decay generally require ultimately low backgrounds. Surface α decays on the crystals themselves or nearby materials can deposit a continuum of energies that can be as high as the Q-value of the decay itself and may fall in the region of interest (ROI). To understand these background events, we studied backgrounds from radioactive contaminations internal to and on the surface of the crystals or nearby materials with Geant4-based Monte Carlo simulations. In this study, we report on the measured α energy spectra fitted with the corresponding simulated spectra for six crystal detectors, where sources of background contributions could be identified through high energy α peaks and continuum parts in the energy spectrum for both internal and surface contaminations. We determine the low-energy contributions from internal and surface α contaminations by extrapolating from the α background fitting model. © 2022, The Author(s).
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Цитирование
Alpha backgrounds in the AMoRE-Pilot experiment / Alenkov, V. [et al.] // European Physical Journal C. - 2022. - 82. - № 12. - 10.1140/epjc/s10052-022-11104-3
URI
https://www.doi.org/10.1140/epjc/s10052-022-11104-3
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85144094615&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000901499200002
 https://openrepository.mephi.ru/handle/123456789/27734
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