Detector optimization to reduce the cosmogenic neutron backgrounds in the TAO experiment
文献类型：期刊论文
| 作者 | Li, RH; Cao, GF; Cao, J; Li, YC; Wang, YF; Wang, ZM; Zhan, L; Wang, Yifang ; Cao, Jun; Cao, Guofu
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| 刊名 | JOURNAL OF INSTRUMENTATION
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| 出版日期 | 2022 |
| 卷号 | 17期号:9 |
| 关键词 | Neutrino detectors Large detector systems for particle and astroparticle physics Simulation methods and programs Large detector-systems performance |
| DOI | 10.1088/1748-0221/17/09/P09024 |
| 文献子类 | Article |
| 英文摘要 | Short-baseline reactor antineutrino experiments with shallow overburden usually have large cosmogenic neutron backgrounds. The Taishan Antineutrino Observatory (TAO) is a ton-level liquid scintillator detector located at about 30m from a core of the Taishan Nuclear Power Plant. It will measure the reactor antineutrino spectrum with high precision and high energy resolution to provide a reference spectrum for JUNO and other reactor antineutrino experiments, and provide a benchmark measurement to test nuclear databases. Background is one of the critical concerns of TAO since the overburden is just 10 meter-water-equivalent. The cosmogenic neutron background was estimated to be similar to 10% of signals [1]. With detailed Monte Carlo simulations, we propose several measures in this work to reduce the neutron backgrounds, including doping Gadolinium in the buffer liquid, adding a polyethylene layer above the bottom lead shield, and optimization of the veto strategy. With these improvements, the neutron background-to-signal ratio can be reduced to similar to 2%, and might be further suppressed with pulse shape discrimination. |
| 语种 | 英语 |
| WOS记录号 | WOS:000888844600003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/297566]  |
| 专题 | 江门中微子实验 高能物理研究所_实验物理中心 |
| 推荐引用方式 GB/T 7714 | Li, RH,Cao, GF,Cao, J,et al. Detector optimization to reduce the cosmogenic neutron backgrounds in the TAO experiment[J]. JOURNAL OF INSTRUMENTATION,2022,17(9). |
| APA | Li, RH.,Cao, GF.,Cao, J.,Li, YC.,Wang, YF.,...&Li, Yichen.(2022).Detector optimization to reduce the cosmogenic neutron backgrounds in the TAO experiment.JOURNAL OF INSTRUMENTATION,17(9). |
| MLA | Li, RH,et al."Detector optimization to reduce the cosmogenic neutron backgrounds in the TAO experiment".JOURNAL OF INSTRUMENTATION 17.9(2022). |
入库方式： OAI收割
来源：高能物理研究所
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