Radioactive contamination of scintillators
Radioactive contamination of scintillators
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DOI：
10.1142/s0217751x18430078
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发表时间：
2018-03
期刊：
影响因子：
--
通讯作者：
F. Danevich;V. Tretyak
中科院分区：
文献类型：
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作者：
F. Danevich;V. Tretyak
低计数实验（寻找双β衰变和暗物质粒子，测量来自不同来源的中微子通量，寻找假设的核和亚核过程，低本底α，β，γ谱）需要极低的探测器本底。闪烁体作为常规闪烁探测器和低温闪烁测辐射热计被广泛用于寻找稀有事件。闪烁材料的放射性污染对达到低本底水平起着关键作用。本文综述了蒸发器放射性污染的来源、性质、实验方法和结果。本文简要地讨论了低计数实验用放射性纯晶体衍射器的研制方案。
Low counting experiments (search for double $\beta$ decay and dark matter particles, measurements of neutrino fluxes from different sources, search for hypothetical nuclear and subnuclear processes, low background $\alpha$, $\beta$, $\gamma$ spectrometry) require extremely low background of a detector. Scintillators are widely used to search for rare events both as conventional scintillation detectors and as cryogenic scintillating bolometers. Radioactive contamination of a scintillation material plays a key role to reach low level of background. Origin and nature of radioactive contamination of scintillators, experimental methods and results are reviewed. A programme to develop radiopure crystal scintillators for low counting experiments is discussed briefly.