| ~(13)C(α, n)~(16)O background in a liquid scintillator based neutrino experiment |
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| 引用本文： | 赵洁,于泽源,刘江来,李小波,章飞虹,夏冬梅.~(13)C(α, n)~(16)O background in a liquid scintillator based neutrino experiment[J].中国物理 C,2014,38(11). |
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| 作者姓名： | 赵洁 于泽源 刘江来 李小波 章飞虹 夏冬梅 |
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| 作者单位： | 1. University of Chinese Academy of Sciences, Beijing 100049, China;;2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;;3. Shanghai Jiaotong University, Shanghai 200240, China |
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| 基金项目： | Supported by Ministry of Science and Technology of China(2013CB834301) |
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| 摘 要： | α from natural radioactivity may interact with a nucleus and emit a neutron. The reaction introduces the background to the liquid scintillator(LS) based neutrino experiments. In the LS detector, α comes from 238 U,232Th,and 210 Po decay chains. For Gadolinium-doped LS(Gd-LS) detector, α also comes from 227 Ac. The nucleus 13 C is a natural component of Carbon which is rich in the LS. The background rate and spectrum should be subtracted carefully from the neutrino candidates. This paper describes the calculation of neutron yield and spectrum with uncertainty estimated. The results are relevant for many existing neutrino experiments and future LS or Gd-LS based experiments.
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| 关 键 词： | neutrino C(α n)O radioactivity |
| 收稿时间： | 2013-12-24 |
| 修稿时间： | 2014-3-4 |
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