首页|In-flight Energy Calibration of the GECAM Gamma-ray Detectors
In-flight Energy Calibration of the GECAM Gamma-ray Detectors
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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.
Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China
University of Chinese Academy of Sciences,Beijing 100049,China
China West Normal University,Nanchong 637002,China
Xiangtan University,Xiangtan 411105,China
Beijing Normal University,Beijing 100875,China
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Strategic Priority Program on Space Science,the Chinese Academy of SciencesStrategic Priority Program on Space Science,the Chinese Academy of SciencesStrategic Priority Program on Space Science,the Chinese Academy of SciencesNational Natural Science Foundation of China
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