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Neutron-gamma discrimination of CsI(Na) crystals for dark matter searches
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); Xie YG(谢宇广); An ZH(安正华); Wang ZG(王志刚); Xue Z(薛镇); Zhang AW(章爱武); Ning FP(宁飞鹏); Ge YS(葛永帅); Liu YB(刘颖彪); Sun, XL; Lu, JG; Hu, T; Zhou, L; Cao, J; Wang, YF; Zhan, L; Yu, BX; Cai, X; Fang, J; Xie, YG; An, ZH; Wang, ZG; Xue, Z; Zhang, AW; Lu, QW; Ning, FP; Ge, YS; Liu, YB
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
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
学科分类Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy
DOI10.1016/j.nima.2011.03.062
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
文章类型Article
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.
类目[WOS]Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy
研究领域[WOS]Instruments & Instrumentation ; Nuclear Science & Technology ; Physics ; Spectroscopy
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语种英语
WOS记录号WOS:000292581700007
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/236806
专题院士_期刊论文
中国科学院高能物理研究所_实验物理中心
中国科学院高能物理研究所_加速器中心
中国科学院高能物理研究所_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
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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.
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