用于轻暗物质搜寻的浸没于液氮中的原型点接触锗探测器的性能
仪器与探测器
2018-10-23 v1 高能物理 - 实验
摘要
CDEX-10 实验在中国锦屏地下实验室搜寻轻弱相互作用大质量粒子（一种暗物质形式），其中约 10 kg 锗探测器排成阵列并浸没于液氮中。在此，我们报告一台原型探测器的实验装置、探测器表征与能谱分析。由于 CDEX-10 原型探测器相比 CDEX-1B 具有更高的上升时间分辨率，我们确定了所观测到的一类极快事件的起源。对于 CDEX-10 原型的数据分析，我们引入并应用了一种改进的体/表面事件甄别方法。新方法的结果与 CDEX-1B 能谱的结果进行了比较。两组结果在 0--12 keVee 能量范围内表现出良好的一致性，除了来自外部铜的 8.0 keV K 壳层 X 射线峰。
引用
@article{arxiv.1810.08808,
title = {Performances of a prototype point-contact germanium detector immersed in liquid nitrogen for light dark matter search},
author = {H. Jiang and L. T. Yang and Q. Yue and K. J. Kang and J. P. Cheng and Y. J. Li and H. T. Wong and M. Agartioglu and H. P. An and J. P. Chang and J. H. Chen and Y. H. Chen and Z. Deng and Q. Du and H. Gong and L. He and J. W. Hu and Q. D. Hu and H. X. Huang and L. P. Jia and H. B. Li and H. Li and J. M. Li and J. Li and X. Li and X. Q. Li and Y. L. Li and B. Liao and F. K. Lin and S. T. Lin and S. K. Liu and Y. D. Liu and Y. Y. Liu and Z. Z. Liu and H. Ma and J. L. Ma and H. Pan and J. Ren and X. C. Ruan and B. Sevda and V. Sharma and M. B. Shen and L. Singh and M. K. Singh and T. X. Sun and C. J. Tang and W. Y. Tang and Y. Tian and G. F. Wang and J. M. Wang and L. Wang and Q. Wang and Y. Wang and S. Y. Wu and Y. C. Wu and H. Y. Xing and Y. Xu and T. Xue and S. W. Yang and N. Yi and C. X. Yu and H. J. Yu and J. F. Yue and X. H. Zeng and M. Zeng and Z. Zeng and F. S. Zhang and Y. H. Zhang and M. G. Zhao and J. F. Zhou and Z. Y. Zhou and J. J. Zhu and Z. H. Zhu},
journal= {arXiv preprint arXiv:1810.08808},
year = {2018}
}
备注
version accepted by SCPMA, 8 pages, 11 figures and 2 tables