CDEX-1 1 kg point-contact germanium detector for low mass dark matter searches

KANG Ke-Jun; YUE Qian; WU Yu-Cheng et al. (CDEX collaboration) and (TEXONO collaboration)

doi:10.1088/1674-1137/37/12/126002

Chinese Physics C> 2013, Vol. 37> Issue(12) : 126002 DOI: 10.1088/1674-1137/37/12/126002

CDEX-1 1 kg point-contact germanium detector for low mass dark matter searches

Abstract
HTML
Reference
Related

PDF

Abstract：
The CDEX collaboration has been established for direct detection of light dark matter particles, using ultra-low energy threshold point-contact p-type germanium detectors, in China JinPing underground Laboratory (CJPL). The first 1 kg point-contact germanium detector with a sub-keV energy threshold has been tested in a passive shielding system located in CJPL. The outputs from both the point-contact P⁺ electrode and the outside N⁺ electrode make it possible to scan the lower energy range of less than 1 keV and at the same time to detect the higher energy range up to 3 MeV. The outputs from both P⁺ and N⁺ electrode may also provide a more powerful method for signal discrimination for dark matter experiment. Some key parameters, including energy resolution, dead time, decay times of internal X-rays, and system stability, have been tested and measured. The results show that the 1 kg point-contact germanium detector, together with its shielding system and electronics, can run smoothly with good performances. This detector system will be deployed for dark matter search experiments.

References

[1]

YUE Qian, CHENG Jian-Ping, LI Yuan-Jing et al. HEPNP, 2004, 28(8): 877-880; HE Dao, LI Yu-Lan, YUE Qian et al. HEP NP, 2004, 30(6): 548-533; LI Xin, YUE Qian, LI Yuan-Jing et al. HEP NP, 2007, 31(6): 564-569 (in Chinese)[2] LIN Shin-Ted, LI Hau-Bin, LI Xin et al. Phys. Rev. D, 2009, 79: 061101(R); LI Hau-Bin, LIAO Heng-Yi, LIN Shin-Ted et al. Phys. Rev. Lett., 2013, 110: 261301[3] Aaleth C E et al. (CoGeNT collaboration). Phys. Rev. Lett., 2011, 107: 141301[4] Aprile E et al. (XENON 100 collaboration). Phys. Rev. Lett., 2012, 109: 181301[5] Ahmed Z et al. (CDMS collaboration). Phys. Rev. Lett., 2011, 106: 131302[6] Angloher G et al. (CRESST collaboration). Eur. Phys. J. C, 2012, 72: 1971[7] Bernabei R et al. (DAMA collaboration). Eur. Phys. J. C, 2010, 67: 39; Belli P et al. Phys. Rev. D, 2011, 84: 055014[8] KANG Ke-Jun, CHENG Jian-Ping, CHEN Yun-Hua et al. Journal of Physics: Conference Series, 2010, 203: 012028; KANG Ke-Jun, CHENG Jian-Ping, LI Jin et al. Front. Phys., 2013, 8: 412[9] WU Yu-Cheng, HAO Xi-Qing, YUE Qian et al. Measurement of Cosmic Ray Flux in China JinPing Underground Laboratory. Chin. Phys. C (HEP NP), 2013, 37(8): 086001[10] Luke P et al. IEEE Trans. Nucl. Sci., 1989, 36: 926[11] www.canberra.com[12] www.caen.it

[1]	Kai-Yu Zhang , Wan-Zhe Feng . Explaining the W boson mass anomaly and dark matter with a U(1) dark sector. Chinese Physics C, 2023, 47(2): 023107. doi: 10.1088/1674-1137/aca585
[2]	Rui-Yun Guo , Jing-Fei Zhang , Xin Zhang . Exploring neutrino mass and mass hierarchy in the scenario of vacuum energy interacting with cold dark matter. Chinese Physics C, 2018, 42(9): 095103. doi: 10.1088/1674-1137/42/9/095103
[3]	Li-Tao Yang , et al . Limits on light WIMPs with a 1 kg-scale germanium detector at 160 eVee physics threshold at the China Jinping Underground Laboratory. Chinese Physics C, 2018, 42(2): 023002. doi: 10.1088/1674-1137/42/2/023002
[4]	Shivaramakrishna Singirala . Implications of fermionic dark matter on recent neutrino oscillation data. Chinese Physics C, 2017, 41(4): 043102. doi: 10.1088/1674-1137/41/4/043102
[5]	Hui Li , Zong-Xiu Wu , Chun-Sheng An , Hong Chen . Low-lying 1/2^- hidden strange pentaquark states in the constituent quark model. Chinese Physics C, 2017, 41(12): 124104. doi: 10.1088/1674-1137/41/12/124104
[6]	Bin Zhou , Zhi-Feng Sun , Xiang Liu , Shi-Lin Zhu . Chiral corrections to the 1^-+ exotic meson mass. Chinese Physics C, 2017, 41(4): 043101. doi: 10.1088/1674-1137/41/4/043101
[7]	Qing-Hao Chen , Qian Yue , Jian-Ping Cheng , Ke-Jun Kang , Yuan-Jing Li , Shin-Ted Lin , Chang-Jian Tang , Hao-Yang Xing , Xun-Zhen Yu , Ming Zeng , Jing-Jun Zhu . Measurement of photoelectron yield of the CDEX-10 liquid argon detector prototype. Chinese Physics C, 2016, 40(11): 116002. doi: 10.1088/1674-1137/40/11/116002
[8]	S. A. Alavi , F. S. Kazemian . Photonic dark matter portal and quantum physics. Chinese Physics C, 2016, 40(2): 025101. doi: 10.1088/1674-1137/40/2/025101
[9]	Hao Jiang , Qian Yue , Yu-Lan Li , Ke-Jun Kang , Yuan-Jing Li , Jin Li , Shin-Ted Lin , Shu-Kui Liu , Hao Ma , Jing-Lu Ma , Jian Su , Henry Tsz-King Wong , Li-Tao Yang , Wei Zhao , Zhi Zeng . Measurement of the dead layer thickness in a p-type point contact germanium detector. Chinese Physics C, 2016, 40(9): 096001. doi: 10.1088/1674-1137/40/9/096001
[10]	FU Zi-Wen . I=1/2 low-lying mesons in lattice QCD. Chinese Physics C, 2015, 39(8): 083101. doi: 10.1088/1674-1137/39/8/083101
[11]	HU Jie , GONG Hao-Wei , LIN Qing , NI Kai-Xuan , TAN An-Di , WEI Yue-Huan , XIAO Meng-Jiao , XIAO Xiang , ZHAO Li . Development of the liquid level meters for the PandaX dark matter detector. Chinese Physics C, 2014, 38(5): 056002. doi: 10.1088/1674-1137/38/5/056002
[12]	CHANG Xue , LIU Chun , MA Feng-Cai , YANG Shuo . Supersymmetric extension of the minimal dark matter model. Chinese Physics C, 2012, 36(9): 810-817. doi: 10.1088/1674-1137/36/9/003
[13]	HAN Yi-Wen , BAO Zhi-Qing , HONG Yun . Unruh-Verlinde temperature and energy of (2+1)-dimensional matter coupled black hole via entropic force. Chinese Physics C, 2011, 35(7): 612-615. doi: 10.1088/1674-1137/35/7/003
[14]	ZHANG Chen-Jun . On two-point boundary correlations of the gl(1\|1) supersymmetric vertex model. Chinese Physics C, 2010, 34(8): 1069-1075. doi: 10.1088/1674-1137/34/8/006
[15]	HE Xiao-Gang . Darkon dark matter, unparticle effects and collider physics. Chinese Physics C, 2009, 33(6): 451-455. doi: 10.1088/1674-1137/33/6/010
[16]	LI Jin , LIU Yan , ZHAO Di-Xin , MAO Ze-Pu , QIU Jin-Fa , XIA Xiao-Mi , LAI Yuan-Fen , SHENG Hua-Yi , WANG Pei-Liang , ZHUANG Bao-An , ZHAO Ping-Ping , SHI Feng , YUE Qian , , , , . The CsI(T1) Crystal Detector in TEXONO Low Energy Neutrino Experiment. Chinese Physics C, 2002, 26(4): 393-401.
[17]	Chen Fengzhi , Wang Ping . SU(3)_L×U(1)_X Model and a New Candidate for Dark Matter. Chinese Physics C, 1999, 23(11): 1062-1065.
[18]	Zheng Weihong , Guo Shuohong . Variational Calculation of the Glueball Mass in 2+1 Dimensional SU(2) LGT. Chinese Physics C, 1989, 13(S1): 33-36.
[19]	Liu Jinming , Zheng Weihong , Guo Shuohong . The Mass Gap in 2 + 1 Dimensional SU(3) Lattice Gauge Theory. Chinese Physics C, 1988, 12(S2): 137-142.
[20]	Zheng Weihong , Liu Jinming , Guo Shuohong . The Mass Gap in 2 + 1 Dimensional SU(2) Lattice Gauge Theory. Chinese Physics C, 1988, 12(S1): 51-54.

Access

Get Citation

KANG Ke-Jun, YUE Qian and WU Yu-Cheng et al. (CDEX collaboration) and (TEXONO collaboration). CDEX-1 1 kg point-contact germanium detector for low mass dark matter searches[J]. Chinese Physics C, 2013, 37(12): 126002. doi: 10.1088/1674-1137/37/12/126002

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2013-01-31
Revised: 2013-04-03

Article Metric

Article Views(1902)
PDF Downloads(373)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

CDEX-1 1 kg point-contact germanium detector for low mass dark matter searches

Corresponding author: YUE Qian,

Received Date: 2013-01-31

Accepted Date: 2013-04-03

Available Online: 2013-12-05

Abstract: The CDEX collaboration has been established for direct detection of light dark matter particles, using ultra-low energy threshold point-contact p-type germanium detectors, in China JinPing underground Laboratory (CJPL). The first 1 kg point-contact germanium detector with a sub-keV energy threshold has been tested in a passive shielding system located in CJPL. The outputs from both the point-contact P⁺ electrode and the outside N⁺ electrode make it possible to scan the lower energy range of less than 1 keV and at the same time to detect the higher energy range up to 3 MeV. The outputs from both P⁺ and N⁺ electrode may also provide a more powerful method for signal discrimination for dark matter experiment. Some key parameters, including energy resolution, dead time, decay times of internal X-rays, and system stability, have been tested and measured. The results show that the 1 kg point-contact germanium detector, together with its shielding system and electronics, can run smoothly with good performances. This detector system will be deployed for dark matter search experiments.

HTML

Reference (1)

CDEX-1 1 kg point-contact germanium detector for low mass dark matter searches

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article