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arXiv 1702.02465physics.ins-detastro-ph.IMnucl-ex
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低本底实验的放射性中子产额计算

Radiogenic Neutron Yield Calculations for Low-Background Experiments

S. Westerdale, P. D. Meyers

摘要:

核反冲本底是许多暗物质实验中最危险的本底之一。核反冲的主要来源是探测器材料本身产生的放射性中子。这些中子是由铀和钍污染引起的裂变和$(α,n)$反应产生的。在本文中,我们讨论这些来源的中子产额。我们编制了一份低背景探测器中常见的许多材料的$(α,n)$产率列表,使用本文介绍的一种新工具NeuCBOT计算,可在https://github.com/shawest/neucbot上获得。将这些计算结果与使用数据汇编和SOURCES-4A进行的计算结果进行了比较

英文摘要:

Nuclear recoil backgrounds are one of the most dangerous backgrounds for many dark matter experiments. A primary source of nuclear recoils is radiogenic neutrons produced in the detector material itself. These neutrons result from fission and $(α,n)$ reactions originating from uranium and thorium contamination. In this paper, we discuss neutron yields from these sources. We compile a list of $(α,n)$ yields for many materials common in low-background detectors, calculated using NeuCBOT, a new tool introduced in this paper, available at https://github.com/shawest/neucbot. These calculations are compared to computations made using data compilations and SOURCES-4A

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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