Neutron-gamma discrimination of CsI(Na) crystals for dark matter searches
文献类型：期刊论文
| 作者 | Sun XL(孙希磊) ; Lv JG(吕军光); Hu T(胡涛); Zhou L(周莉); Cao J(曹俊); Wang YF(王贻芳); Zhan L(占亮); Yu BX(俞伯祥); Cai X(蔡啸); Fang J(方建)
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| 刊名 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
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| 出版日期 | 2011 |
| 卷号 | 642期号:1页码:52-58 |
| 关键词 | Dark matter Nuclear recoil Decay time n/gamma separation Surface effect Light yield |
| 通讯作者 | [Sun, Xilei ; Lu, Junguang ; Hu, Tao ; Zhou, Li ; Cao, Jun ; Wang, Yifang ; Zhan, Liang ; Yu, Boxiang ; Cai, Xiao ; Fang, Jian ; Xie, Yuguang ; An, Zhenghua ; Wang, Zhigang ; Xue, Zhen ; Zhang, Aiwu ; Ning, Feipeng ; Ge, Yongshuai ; liu, Yingbiao] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Lu, Qiwen] Shanxi Univ, Taiyuan 030006, Peoples R China |
| 英文摘要 | The luminescent properties of CsI(Na) crystals are studied in this report. Using a TDS3054C oscilloscope with a sampling frequency of 5 GS/s, we find out that nuclear recoil signals are dominated by a very fast light pulse with a decay time of similar to 20 ns, while gamma-ray signals have a decay time of similar to 600 ns. The study of n/gamma separation shows that the rejection factor can reach an order of 10(-7) with a signal efficiency of more than 80% at an equivalent electron recoil energy of 20 keV or more, and the quality factors are similar to 10 times smaller than that for CsI(TI) crystals in the corresponding energy region. It is suggested that the wavelength of nuclear recoil and gamma-ray signals is also different. Such a property makes CsI(Na) an ideal candidate for dark matter searches. (C) 2011 Elsevier B.V. All rights reserved. |
| 学科主题 | Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy |
| 类目[WOS] | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy |
| 研究领域[WOS] | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics ; Spectroscopy |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000292581700007 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/236806]  |
| 专题 | 高能物理研究所_院士 高能物理研究所_实验物理中心 高能物理研究所_加速器中心 高能物理研究所_粒子天体物理中心 中国科学院高能物理研究所_中国散裂中子源 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Sun XL,Lv JG,Hu T,et al. Neutron-gamma discrimination of CsI(Na) crystals for dark matter searches[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2011,642(1):52-58. |
| APA | 孙希磊.,吕军光.,胡涛.,周莉.,曹俊.,...&Liu, YB.(2011).Neutron-gamma discrimination of CsI(Na) crystals for dark matter searches.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,642(1),52-58. |
| MLA | 孙希磊,et al."Neutron-gamma discrimination of CsI(Na) crystals for dark matter searches".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 642.1(2011):52-58. |
入库方式： OAI收割
来源：高能物理研究所
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