In-flight Energy Calibration of the GECAM Gamma-ray Detectors  

作　　者：Rui Qiao Dong-Ya Guo Wen-Xi Peng Yan-Qiu Zhang Shuo Xiao Shao-Lin Xiong Chao Zheng Chao-Yang Li Jia-Cong Liu Wang-Chen Xue Jian-Jian He Zheng-Hua An Da-Li Zhang Xin-Qiao Li Li-Ming Song Shi-Jie Zheng Ke Gong Ya-Qing Liu Xin-Ying Song Xiao-Yun Zhao Xiang-Yang Wen Yan-Bing Xu Xiang Ma Xiao-Bo Li Ping Wang Yue Huang Ce Cai Qi-Bin Yi Yi Zhao Chen-Wei Wang 

机构地区：[1]Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]China West Normal University,Nanchong 637002,China [4]Xiangtan University,Xiangtan 411105,China [5]Beijing Normal University,Beijing 100875,China

出　　处：《Research in Astronomy and Astrophysics》2024年第10期48-57,共10页天文和天体物理学研究（英文版）

基　　金：supported by the Strategic Priority Program on Space Science,the Chinese Academy of Sciences,grant Nos.XDA15360102,XDA15360300 and E02212A02S;the National Natural Science Foundation of China(Project:12061131007)。

摘　　要：The Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM)mission is designed to monitor the Gamma-Ray Bursts(GRBs)associated with gravitational waves and other high-energy transient sources.The mission consists of two microsatellites which are planned to operate at the opposite sides of the Earth.Each GECAM satellite could detect and localize GRBs in about 8 keV-5 MeV with its 25 Gamma-Ray Detectors(GRDs).In this work,we report the in-flight energy calibration of GRDs using the characteristic gamma-ray lines in the background spectra,and show their performance evolution during the commissioning phase.Besides,a preliminary cross-calibration of energy response with Fermi GBM data is also presented,validating the energy response of GRDs.

关 键 词：(stars:)gamma-ray burst:general instrumentation:detectors methods:data analysis 

分 类 号：P142.84[天文地球—天体物理] V447.1[天文地球—天文学]