Inflight performance of the GECAM Gamma-ray and Charge particle Detectors

X. Q. Li; X. Y. Wen; S. L. Xiong; K. Gong; D. L. Zhang; Z. H. An; Y. B. Xu; Y. Q. Liu; C. Cai; Z. Chang; G. Chen; C. Chen; Y. Y. Du; M. Gao; R. Gao; D. Y. Guo; J. J. He; D. J. Hou; Y. G. Li; C. Li; C. Y. Li; G. Li; L. Li; Q. X. Li; X. F. Li; M. S. Li; X. H. Liang; X. J. Liu; F. J. Lu; H. Lu; X. Ma; B. Meng; W. X. Peng; R. Qiao; F. Shi; L. M. Song; X. L. Sun; H. Wang; H. Z. Wang; J. Z. Wang; P. Wang; Y. S. Wang; X. Wen; S. Xiao; Y. P. Xu; S. Yang; J. W. Yang; Q. B. Yi; Fan. Zhang; S. N. Zhang; C. Y. Zhang; C. M. Zhang; Fei Zhang; K. Zhang; P. Zhang; X. Y. Zhao; Y. Zhao; S. J. Zheng; X. Zhou

arXiv · 2112.04772

Inflight performance of the GECAM Gamma-ray and Charge particle Detectors

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Abstract

The GECAM mission consists of two identical microsatellites (GECAM-A and GECAM-B). Each satellite is equipped with 25 gamma-ray detectors (GRD) and 8 charged particle detectors (CPD). The main scientific objective of the GECAM mission is to detect gamma-ray bursts (GRBs) associated with the gravitational wave events produced by the merging of binary compact stars. After the launch on Dec. 10, 2020 , we carried out a series of on orbit tests. This paper introduces the test results of the GECAM-B satellite. According to the in-flight performance, the energy band for gamma-ray detection of GECAM-B is from about 7 keV to 3.5 MeV. GECAM-B can achieve prompt localization of GRBs. For the first time, GECAM-B realized a quasi-real-time transmission of trigger information using Beidou-3 RDSS. Keywords GECAM, gamma-ray burst, gravitational wave, GRD, CPD

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X. Q. Li, X. Y. Wen, S. L. Xiong, K. Gong, D. L. Zhang, Z. H. An, Y. B. Xu, Y. Q. Liu, C. Cai, Z. Chang, G. Chen, C. Chen, Y. Y. Du, M. Gao, R. Gao, D. Y. Guo, J. J. He, D. J. Hou, Y. G. Li, C. Li, C. Y. Li, G. Li, L. Li, Q. X. Li, X. F. Li, M. S. Li, X. H. Liang, X. J. Liu, F. J. Lu, H. Lu, X. Ma, B. Meng, W. X. Peng, R. Qiao, F. Shi, L. M. Song, X. L. Sun, H. Wang, H. Z. Wang, J. Z. Wang, P. Wang, Y. S. Wang, X. Wen, S. Xiao, Y. P. Xu, S. Yang, J. W. Yang, Q. B. Yi, Fan. Zhang, S. N. Zhang, C. Y. Zhang, C. M. Zhang, Fei Zhang, K. Zhang, P. Zhang, X. Y. Zhao, Y. Zhao, S. J. Zheng, X. Zhou. 2021-12-09. Inflight performance of the GECAM Gamma-ray and Charge particle Detectors. https://arxiv.org/abs/2112.04772

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