The performance of SiPM-based gamma-ray detector (GRD) of GECAM-C

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...

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Bibliographic Details
Published in:arXiv.org 2023-03
Main Authors: Zhang, Dali, Zheng, Chao, Liu, Jiacong, An, Zhenghua, Wang, Chenwei, Wen, Xiangyang, Li, Xinqiao, Sun, Xilei, Gong, Ke, Liu, Yaqing, Liu, Xiaojing, Yang, Sheng, Peng, Wenxi, Qiao, Rui, Guo, Dongya, Feng, Peiyi, Zhang, Yanqiu, Xue, Wangchen, Tan, Wenjun, Cai, Ce, Xiao, Shuo, Yi, Qibin, Xu, Yanbing, Gao, Min, Wang, Jinzhou, Hou, Dongjie, Huang, Yue, Zhao, Xiaoyun, Ma, Xiang, Wang, Ping, Wang, Jin, Li, Xiaobo, Zhang, Peng, Zhang, Zhen, Li, Yanguo, Wang, Hui, Liang, Xiaohua, Wang, Yuxi, Li, Bing, Ye, Jianying, Zheng, Shijie, Song, Liming, Zhang, Fan, Chen, Gang, Xiong, Shaolin
Format: Article
Language:English
Subjects:
Flight characteristics
Gamma ray bursts
Gamma ray detectors
Gravitational waves
Ground tests
Radio bursts
Repeaters
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Summary: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.
ISSN:2331-8422