As a new member of GECAM mission, the GECAM-C (also called High Energy Burst Searcher, HEBS) is a gamma-ray all-sky monitor onboard SATech-01 satellite, which was launched on July 27th, 2022 to detect gamma-ray transients from 6 keV to 6 MeV, such as Gamma-Ray Bursts (GRBs), high energy counterpart of Gravitational Waves (GWs) and Fast Radio Bursts (FRBs), and Soft Gamma-ray Repeaters (SGRs). Together with GECAM-A and GECAM-B launched in December 2020, GECAM-C will greatly improve the monitoring coverage, localization, as well as temporal and spectral measurements of gamma-ray transients. GECAM-C employs 12 SiPM-based Gamma-Ray Detectors (GRDs) to detect gamma-ray transients . In this paper, we firstly give a brief description of the design of GECAM-C GRDs, and then focus on the on-ground tests and in-flight performance of GRDs. We also did the comparison study of the SiPM in-flight performance between GECAM-C and GECAM-B. The results show GECAM-C GRD works as expected and is ready to make scientific observations.
@article{arxiv.2303.00537,
title = {The performance of SiPM-based gamma-ray detector (GRD) of GECAM-C},
author = {Dali Zhang and Chao Zheng and Jiacong Liu and Zhenghua An and Chenwei Wang and Xiangyang Wen and Xinqiao Li and Xilei Sun and Ke Gong and Yaqing Liu and Xiaojing Liu and Sheng Yang and Wenxi Peng and Rui Qiao and Dongya Guo and Peiyi Feng and Yanqiu Zhang and Wangchen Xue and Wenjun Tan and Ce Cai and Shuo Xiao and Qibin Yi and Yanbing Xu and Min Gao and Jinzhou Wang and Dongjie Hou and Yue Huang and Xiaoyun Zhao and Xiang Ma and Ping Wang and Jin Wang and Xiaobo Li and Peng Zhang and Zhen Zhang and Yanguo Li and Hui Wang and Xiaohua Liang and Yuxi Wang and Bing Li and Jianying Ye and Shijie Zheng and Liming Song and Fan Zhang and Gang Chen and Shaolin Xiong},
journal= {arXiv preprint arXiv:2303.00537},
year = {2023}
}