The SiPM Array Data Acquisition Algorithm Applied to the GECAM Satellite Payload

• DOI: 10.48550/arxiv.2112.04786
• Publication Date: 2021-01-01
• Authors: Liu, Y. Q.; Gong, K.; Li, X. Q.; Wen, X. Y.; An, Z. H.; Cai, C.; Chang, Z.; Chen, G.; Chen, C.; Du, Y. Y.; Gao, M.; Gao, R.; Guo, D. Y.; He, J. J.; Hou, D. J.; Li, Y. G.; Li, C. Y.; Li, G.; Li, L.; Li, X. F.; Li, M. S.; Liang, X. H.; Liu, X. J.; Lu, F. J.; Lu, H.; Meng, B.; Peng, W. X.; Shi, F.; Sun, X. L.; Wang, H.; Wang, J. Z.; Wang, Y. S.; Wang, H. Z.; Wen, X.; Xiao, S.; Xiong, S. L.; Xu, Y. B.; Xu, Y. P.; Yang, S.; Yang, J. W.; Yi, Q. B.; Zhang, Fan.; Zhang, D. L.; Zhang, S. N.; Zhang, C. Y.; Zhang, C. M.; Zhang, Fei; Zhao, X. Y.; Zhao, Y.; Zhou, X.
• Keywords: High Energy Physics - Experiment (hep-ex); 0103 physical sciences; FOS: Physical sciences; Astrophysics - Instrumentation and Methods for Astrophysics; 01 natural sciences; Instrumentation and Methods for Astrophysics (astro-ph.IM); High Energy Physics - Experiment

The Gravitational Wave Burst High-energy Electromagnetic Counterpart All-sky Monitor (GECAM), consists of 2 small satellites that each contain 25 LaBr3 (lanthanum bromide doped with cerium chloride) detectors and 8 plastic scintillator detectors. The detector signals are read out using a silicon photomultiplier (SiPM) array. In this study, an acquisition algorithm for in-orbit real-time SiPM array data is designed and implemented, and the output event packet is defined. Finally, the algorithm's efficacy for event acquisition is verified.