Back to Search Start Over

Performances of a prototype point-contact germanium detector immersed in liquid nitrogen for light dark matter search

Authors :
Jiang, H.
Yang, L. T.
Yue, Q.
Kang, K. J.
Cheng, J. P.
Li, Y. J.
Wong, H. T.
Agartioglu, M.
An, H. P.
Chang, J. P.
Chen, J. H.
Chen, Y. H.
Deng, Z.
Du, Q.
Gong, H.
He, L.
Hu, J. W.
Hu, Q. D.
Huang, H. X.
Jia, L. P.
Li, H. B.
Li, H.
Li, J. M.
Li, J.
Li, X.
Li, X. Q.
Li, Y. L.
Liao, B.
Lin, F. K.
Lin, S. T.
Liu, S. K.
Liu, Y. D.
Liu, Y. Y.
Liu, Z. Z.
Ma, H.
Ma, J. L.
Pan, H.
Ren, J.
Ruan, X. C.
Sevda, B.
Sharma, V.
Shen, M. B.
Singh, L.
Singh, M. K.
Sun, T. X.
Tang, C. J.
Tang, W. Y.
Tian, Y.
Wang, G. F.
Wang, J. M.
Wang, L.
Wang, Q.
Wang, Y.
Wu, S. Y.
Wu, Y. C.
Xing, H. Y.
Xu, Y.
Xue, T.
Yang, S. W.
Yi, N.
Yu, C. X.
Yu, H. J.
Yue, J. F.
Zeng, X. H.
Zeng, M.
Zeng, Z.
Zhang, F. S.
Zhang, Y. H.
Zhao, M. G.
Zhou, J. F.
Zhou, Z. Y.
Zhu, J. J.
Zhu, Z. H.
Jiang, H.
Yang, L. T.
Yue, Q.
Kang, K. J.
Cheng, J. P.
Li, Y. J.
Wong, H. T.
Agartioglu, M.
An, H. P.
Chang, J. P.
Chen, J. H.
Chen, Y. H.
Deng, Z.
Du, Q.
Gong, H.
He, L.
Hu, J. W.
Hu, Q. D.
Huang, H. X.
Jia, L. P.
Li, H. B.
Li, H.
Li, J. M.
Li, J.
Li, X.
Li, X. Q.
Li, Y. L.
Liao, B.
Lin, F. K.
Lin, S. T.
Liu, S. K.
Liu, Y. D.
Liu, Y. Y.
Liu, Z. Z.
Ma, H.
Ma, J. L.
Pan, H.
Ren, J.
Ruan, X. C.
Sevda, B.
Sharma, V.
Shen, M. B.
Singh, L.
Singh, M. K.
Sun, T. X.
Tang, C. J.
Tang, W. Y.
Tian, Y.
Wang, G. F.
Wang, J. M.
Wang, L.
Wang, Q.
Wang, Y.
Wu, S. Y.
Wu, Y. C.
Xing, H. Y.
Xu, Y.
Xue, T.
Yang, S. W.
Yi, N.
Yu, C. X.
Yu, H. J.
Yue, J. F.
Zeng, X. H.
Zeng, M.
Zeng, Z.
Zhang, F. S.
Zhang, Y. H.
Zhao, M. G.
Zhou, J. F.
Zhou, Z. Y.
Zhu, J. J.
Zhu, Z. H.
Publication Year :
2018

Abstract

The CDEX-10 experiment searches for light weakly-interacting massive particles, a form of dark matter, at the China JinPing underground laboratory, where approximately 10 kg of germanium detectors are arranged in an array and immersed in liquid nitrogen. Herein, we report on the experimental apparatus, detector characterization, and spectrum analysis of one prototype detector. Owing to the higher rise-time resolution of the CDEX-10 prototype detector as compared with CDEX-1B, we identified the origin of an observed category of extremely fast events. For data analysis of the CDEX-10 prototype, we introduced and applied an improved bulk/surface event discrimination method. The results of the new method were compared to those of the CDEX-1B spectrum. Both sets of results showed good consistency in the 0--12 keVee energy range, except for the 8.0 keV K-shell X-ray peak from the external copper.<br />Comment: version accepted by SCPMA, 8 pages, 11 figures and 2 tables

Details

Database :
OAIster
Publication Type :
Electronic Resource
Accession number :
edsoai.on1099920307
Document Type :
Electronic Resource
Full Text :
https://doi.org/10.1007.s11433-018-8001-3
Full Text Access
View/download PDF

Tools

Authors Abstract Subjects Details