利用氡气源对PandaX-II探测器的内部校准
仪器与探测器
2021-01-05 v3 高能物理 - 实验
核实验
摘要
我们为PandaX-II探测器开发了一种利用Rn的低能电子反冲（ER）校准方法。源自天然钍化合物的Rn通过氙纯化系统送入探测器。2017至2019年，我们使用不同氡源开展了三次专门校准活动。我们研究了探测器对、和粒子的响应，重点关注低能ER事件。在2017和2018年运行期间，Rn的放射性活度约为Rn的1%，且钍颗粒污染可忽略，尤其在2018年。借助Rn注入，我们还首次在PandaX-II中测量了Pb的本底贡献。利用Rn和Rn的校准策略将在即将开展的PandaX-4T实验中实施，也可用于其他基于氙的探测器。
引用
@article{arxiv.2006.09311,
title = {Internal Calibration of the PandaX-II Detector with Radon Gaseous Sources},
author = {Wenbo Ma and Abdusalam Abdukerim and Zihao Bo and Wei Chen and Xun Chen and Yunhua Chen and Chen Cheng and Xiangyi Cui and Yingjie Fan and Deqing Fang and Changbo Fu and Mengting Fu and Lisheng Geng and Karl Giboni and Linhui Gu and Xuyuan Guo and Ke Han and Changda He and Shengming He and Di Huang and Yan Huang and Yanlin Huang and Zhou Huang and Xiangdong Ji and Yonglin Ju and Shuaijie Li and Huaxuan Liu and Jianglai Liu and Yugang Ma and Yajun Mao and Yue Meng and Kaixiang Ni and Jinhua Ning and Xuyang Ning and Xiangxiang Ren and Changsong Shang and Lin Si and Guofang Shen and Andi Tan and Anqing Wang and Hongwei Wang and Meng Wang and Qiuhong Wang and Siguang Wang and Wei Wang and Xiuli Wang and Zhou Wang and Mengmeng Wu and Shiyong Wu and Weihao Wu and Jingkai Xia and Mengjiao Xiao and Pengwei Xie and Binbin Yan and Jijun Yang and Yong Yang and Chunxu Yu and Jumin Yuan and Ying Yuan and Jianfeng Yue and Xinning Zeng and Dan Zhang and Tao Zhang and Li Zhao and Qibin Zheng and Jifang Zhou and Ning Zhou and Xiaopeng Zhou},
journal= {arXiv preprint arXiv:2006.09311},
year = {2021}
}
备注
14 pages, 8 figures. published in JINST