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arXiv 1108.4353astro-ph.CO
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CsI(Tl)闪烁体表面氡子体的低能快事件

Low energy fast events from radon progenies at the surface of a CsI(Tl) scintillator

S. C. Kim, H. Bhang, J. H. Choi, W. G. Kang, H. J. Kim, K. W. Kim, S. K. Kim, Y. D. Kim, H. S. Lee, J. I. Lee, J. H. Lee, J. K. Lee, M. J. Lee, S. J. Lee, J. Li… 展开作者

S. C. Kim, H. Bhang, J. H. Choi, W. G. Kang, H. J. Kim, K. W. Kim, S. K. Kim, Y. D. Kim, H. S. Lee, J. I. Lee, J. H. Lee, J. K. Lee, M. J. Lee, S. J. Lee, J. Li, J. Li, Y. J. Li, X. Li, S. S. Myung, S. L. Olsen, S. Ryu, I. S. Seong, J. H. So, Q. Yue

摘要:

在寻找诸如暗物质粒子的弹性散射或无中微子双β衰变等罕见现象时,附着在探测材料表面的Rn 222子体的α衰变已被确定为严重的背景源。在测量与碘化铯(铊)闪烁体晶体,我们表明,α衰变的表面污染物产生快速的信号与特征的平均时间分布,这是不同的中子和伽马引起的事件。

英文摘要:

In searches for rare phenomena such as elastic scattering of dark matter particles or neutrinoless double beta decay, alpha decays of Rn222 progenies attached to the surfaces of the detection material have been identified as a serious source of background. In measurements with CsI(Tl) scintillator crystals, we demonstrate that alpha decays of surface contaminants produce fast signals with a characteristic mean-time distribution that is distinct from those of neutron- and gamma-induced events.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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