RELICS 实验 photosensor 系统的设计与表征
仪器与探测器
2026-02-20 v3 高能物理 - 实验
摘要
本文介绍了为 RELICS 实验开发的 photosensor 系统的设计与表征。设计了扩展动态范围的基底，以缓解 surface-level RELICS 探测器中强烈宇宙μ子背景导致的光倍增管 (PMT) 饱和问题。该系统通过对阴极和第七 dynode 的双读取来扩展 PMT 的线性响应范围。特别是，我们对 Hamamatsu R8520-406 PMTs 的表征和测量确认了在正高电压偏置下稳定工作，使线性响应范围扩展了一个数量级以上。此外，开发了 PMT 饱和和恢复的模型，用于评估宇宙μ子信号在 RELICS 探测器中的影响。结果表明，该系统能够在 surface-level 宇宙背景下检测 coherent elastic neutrino-nucleus scatter 信号，并表明将 RELICS 的科学覆盖范围扩展至 MeV 尺度 interactions 的潜力。
引用
@article{arxiv.2510.24196,
title = {Design and characterization of a photosensor system for the RELICS experiment},
author = {Jijun Yang and Ruize Li and Chang Cai and Guocai Chen and Jiangyu Chen and Huayu Dai and Rundong Fang and Fei Gao and Jingfan Gu and Xiaoran Guo and Jiheng Guo and Gaojun Jin and Fali Ju and Yanzhou Hao and Yang Lei and Kaihang Li and Meng Li and Minhua Li and Shengchao Li and Siyin Li and Tao Li and Qing Lin and Jiajun Liu and Sheng Lv and Guang Luo and Kangwei Ni and Chuanping Shen and Mingzhuo Song and Lijun Tong and Jun Wang and Xiaoyu Wang and Wei Wang and Xiaoping Wang and Zihu Wang and Yuehuan Wei and Liming Weng and Xiang Xiao and Lingfeng Xie and Litao Yang and Long Yang and Jingqiang Ye and Jiachen Yu and Qian Yue and Yuyong Yue and Bingwei Zhang and Yuming Zhang and Yifei Zhao and Chenhui Zhu},
journal= {arXiv preprint arXiv:2510.24196},
year = {2026}
}
备注
19 pages, 13 figures. v3: updated to address the referees' comments, fixed author list typo. Journal reference added