| 低能量阈高纯锗探测器用于暗物质探测实验研究 |
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| 引用本文： | 李昕,岳骞,李元景,李金,何道,金善基,郭正元,王子敬.低能量阈高纯锗探测器用于暗物质探测实验研究[J].中国物理 C,2007,31(6):564-569. |
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| 作者姓名： | 李昕 岳骞 李元景 李金 何道 金善基 郭正元 王子敬 |
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| 作者单位： | [1]清华大学工程物理系,北京100084 [2]首尔国立大学物理系,首尔151—742 [3]中研院物理研究所,台北11529 |
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| 基金项目： | 国家自然科学基金
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清华大学校科研和教改项目 |
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| 摘 要： | 一个位于韩国江原道襄阳郡地下实验室的暗物质WIMP探测实验中, 采用了低能量阈高纯锗探测器, 带有碘化铯晶体反符合探测器作为主动屏蔽体. 整个系统设置和能量标定已经完成, 并且已经积累了约155d的本底数据. 还应用外置伽玛源和中子源进行了实验, 以判断本底的来源. 介绍了数据的分析和初步结果, 并给出了实验诱人的前景.
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| 关 键 词： | 暗物质 WIMPs 低能量阈高纯锗探测器 标定 反符合效率 |
| 收稿时间： | 2006-8-16 |
| 修稿时间： | 2006-08-162006-10-21 |
Status of ULE-HPGe Detector Experiment for Dark Matter Search |
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| LI Xin,YUE Qian,LI Yuan-Jing,LI Jin,HE Dao,KIM S. K.,KWAKJ. W.,WANGH. T..Status of ULE-HPGe Detector Experiment for Dark Matter Search[J].High Energy Physics and Nuclear Physics,2007,31(6):564-569. |
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| Authors: | LI Xin YUE Qian LI Yuan-Jing LI Jin HE Dao KIM S K KWAKJ W WANGH T |
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| Institution: | Department of Engineering Physics, Tsinghua University, Beijing 100084, China;School of Physics, Seoul National University, Seoul 151-742, Korea;Institute of Physics, AS, Taipei 11529, China |
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| Abstract: | An Ultra Low Energy HPGe (ULE-HPGe) detector, with CsI (Tl) active shielding, is applied to the direct detection experiment for weakly interacting massive particles (WIMP), and located in Korea. The setups for the whole system and the calibration have been completed and more than half a year's background data have been accumulated. Some external neutron and gamma source experiments were carried out to study the origin of the background. The analysis and preliminary results are shown, and an attractive future is also provided. |
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| Keywords: | dark matter WIMP ULE-HPGe detector calibration veto efficiency |
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