Ground calibration of Gamma-Ray Detectors of GECAM-C

Chao Zheng; Zheng-Hua An; Wen-Xi Peng; Da-Li Zhang; Shao-Lin Xiong; Rui. Qiao; Yan-Qiu Zhang; Wang-Chen Xue; Jia-Cong Liu; Pei-Yi Feng; Ce. Cai; Min Gao; Ke Gong; Dong-Ya Guo; Dong-Jie Hou; Gang Li; Xin-Qiao Li; Yan-Guo Li; Mao-Shun Li; Xiao-Hua Liang; Ya-Qing Liu; Xiao-Jing Liu; Li-Ming Song; Xi-Lei Sun; Wen-Jun Tan; Chen-Wei Wang; Hui Wang; Jin-Zhou Wang; Xiang-Yang Wen; Shuo Xiao; Yan-Bing Xu; Sheng Yang; Qi-Bing Yi; Fan Zhang; Peng Zhang; Zhen Zhang; Yi Zhao; Xing Zhou

arXiv · 2303.00687

Ground calibration of Gamma-Ray Detectors of GECAM-C

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Abstract

As a new member of GECAM mission, GECAM-C (also named High Energy Burst Searcher, HEBS) was launched onboard the SATech-01 satellite on July 27th, 2022, which is capable to monitor gamma-ray transients from $\sim$ 6 keV to 6 MeV. As the main detector, there are 12 gamma-ray detectors (GRDs) equipped for GECAM-C. In order to verify the GECAM-C GRD detector performance and to validate the Monte Carlo simulations of detector response, comprehensive on-ground calibration experiments have been performed using X-ray beam and radioactive sources, including Energy-Channel relation, energy resolution, detection efficiency, SiPM voltage-gain relation and the non-uniformity of positional response. In this paper, the detailed calibration campaigns and data analysis results for GECAM-C GRDs are presented, demonstrating the excellent performance of GECAM-C GRD detectors.

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Chao Zheng, Zheng-Hua An, Wen-Xi Peng, Da-Li Zhang, Shao-Lin Xiong, Rui. Qiao, Yan-Qiu Zhang, Wang-Chen Xue, Jia-Cong Liu, Pei-Yi Feng, Ce. Cai, Min Gao, Ke Gong, Dong-Ya Guo, Dong-Jie Hou, Gang Li, Xin-Qiao Li, Yan-Guo Li, Mao-Shun Li, Xiao-Hua Liang, Ya-Qing Liu, Xiao-Jing Liu, Li-Ming Song, Xi-Lei Sun, Wen-Jun Tan, Chen-Wei Wang, Hui Wang, Jin-Zhou Wang, Xiang-Yang Wen, Shuo Xiao, Yan-Bing Xu, Sheng Yang, Qi-Bing Yi, Fan Zhang, Peng Zhang, Zhen Zhang, Yi Zhao, Xing Zhou. 2023-03-01. Ground calibration of Gamma-Ray Detectors of GECAM-C. https://arxiv.org/abs/2303.00687

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