Introduction to the CDEX experiment
Introduction to the CDEX experiment
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DOI：
10.1007/s11467-013-0349-1
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发表时间：
2013-03
影响因子：
7.5
通讯作者：
K. Kang;Jianping Cheng;Jin Li;Yuanjing Li;Q. Yue;Yang Bai;Y. Bi;Jianping Chang;N. Chen;N. Chen;Qinghao Chen;Yunhua Chen;Y. Chuang;Z. Deng;Q. Du;H. Gong;X. Hao;H. He;Q. He;Xin Hu;Hanxiong Huang;Teng-Rui Huang;Hao Jiang;Hau-Bin Li;Jianmin Li;Jun Li;Xia Li;Xinying Li;Xueqian Li;Yu-Lan Li;H. Liao;F. Lin;S. Lin;Shu-Kui Liu;Yabin Liu;L. Lü;Hao Ma;S. Mao;J. Qin;Jie Ren;Jing Ren;X. Ruan;M. Shen;Lakhwinder Simgh;M. Singh;A. Soma;Jian Su;C. Tang;C. Tseng;Jimin Wang;Li Wang;Qing Wang;Tsz-King Henry Wong;Xu-Feng Wang;Shi-yong Wu;Wei Wu;Yucheng Wu;Z. Xianyu;H. Xing;Xun-Jie Xu;Yin Xu;T. Xue;Litao Yang;Song Yang;N. Yi;Chun-xu Yu;Hao Yu;Xun-Zhen Yu;Xionghui Zeng;Z. Zeng;Lan Zhang;Yunhua Zhang;Minggang Zhao;Wei Zhao;S. Zhong;Jingsheng Zhou;Zuying Zhou;Jingjun Zhu;Wei Zhu;Xu Zhu;Zhonghua Zhu;Cdex Collaboration
中科院分区：
文献类型：
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作者：
K. Kang;Jianping Cheng;Jin Li;Yuanjing Li;Q. Yue;Yang Bai;Y. Bi;Jianping Chang;N. Chen;N. Chen;Qinghao Chen;Yunhua Chen;Y. Chuang;Z. Deng;Q. Du;H. Gong;X. Hao;H. He;Q. He;Xin Hu;Hanxiong Huang;Teng-Rui Huang;Hao Jiang;Hau-Bin Li;Jianmin Li;Jun Li;Xia Li;Xinying Li;Xueqian Li;Yu-Lan Li;H. Liao;F. Lin;S. Lin;Shu-Kui Liu;Yabin Liu;L. Lü;Hao Ma;S. Mao;J. Qin;Jie Ren;Jing Ren;X. Ruan;M. Shen;Lakhwinder Simgh;M. Singh;A. Soma;Jian Su;C. Tang;C. Tseng;Jimin Wang;Li Wang;Qing Wang;Tsz-King Henry Wong;Xu-Feng Wang;Shi-yong Wu;Wei Wu;Yucheng Wu;Z. Xianyu;H. Xing;Xun-Jie Xu;Yin Xu;T. Xue;Litao Yang;Song Yang;N. Yi;Chun-xu Yu;Hao Yu;Xun-Zhen Yu;Xionghui Zeng;Z. Zeng;Lan Zhang;Yunhua Zhang;Minggang Zhao;Wei Zhao;S. Zhong;Jingsheng Zhou;Zuying Zhou;Jingjun Zhu;Wei Zhu;Xu Zhu;Zhonghua Zhu;Cdex Collaboration
弱相互作用大质量粒子（WIMPs）被认为是宇宙中暗物质（DM）的候选者，它们来自外太空，可能与地球上探测器的标准模型物质（SM）发生相互作用。世界上的许多合作正在进行各种实验，以直接检测DM粒子。中国锦屏地下实验室（CJPL）是世界上最深的地下实验室，为DM研究提供了非常有前途的环境。中国暗物质实验（CDEX）将在低质量区直接探测WIMP通量。CJPL和CDEX在近三年来都取得了显著的进展。CDEX采用点接触锗（PCGe）半导体探测器，其能量阈值小于300 eV。本文介绍了在CJPL上进行的μ子通量测量、放射性监测和氡浓度监测的结果，并描述了CDEX-1上的1 kg-PCGe探测器和CDEX-10上的10 kg-PCGe探测器阵列的结构和性能，包括探测器、电子学、屏蔽和冷却系统。最后讨论了CDEX-1、CDEX-10和未来CDEX-1 T实验的物理目标。
It is believed that weakly interacting massive particles (WIMPs) are candidates for dark matter (DM) in our universe which come from outer space and might interact with the standard model (SM) matter of our detectors on the earth. Many collaborations in the world are carrying out various experiments to directly detect DM particles. China Jinping underground Laboratory (CJPL) is the deepest underground laboratory in the world and provides a very promising environment for DM search. China Dark matter EXperiment (CDEX) is going to directly detect the WIMP flux with high sensitivity in the low WIMP-mass region. Both CJPL and CDEX have achieved a remarkable progress in recent three years. CDEX employs a point-contact germanium (PCGe) semi-conductor detector whose energy threshold is less than 300 eV. In this report we present the measurement results of muon flux, monitoring of radioactivity and radon concentration carried out in CJPL, as well describing the structure and performance of the 1 kg-PCGe detector in CDEX-1 and 10 kg-PCGe detector array in CDEX-10 including the detectors, electronics, shielding and cooling systems. Finally we discuss the physics goals of CDEX-1, CDEX-10 and the future CDEX-1T experiments.