Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a constellation with four instruments (launch date): GECAM-A/B (10 December 2020), GECAM-C (27 July 2022) and GECAM-D (13 March 2024), which are dedicated to monitoring gamma-ray transients in all-sky. The primary science objectives of GECAM include Gamma-Ray Bursts …
The GECAM series of satellites utilizes LaBr $$_3$$ 3 (Ce), LaBr $$_3$$ 3 (Ce,Sr), and NaI(Tl) crystals as sensitive materials for gamma-ray detectors (GRDs). To investigate the nonlinearity in the detection of low-energy gamma rays and address the errors in the calibration of the E–C relationship, comprehensive tests and comparative studies of the three …
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