Gain stabilization and consistency correction approach for multiple SiPM-based gamma-ray detectors on GECAM

	Gain stabilization and consistency correction approach for multiple SiPM-based gamma-ray detectors on GECAM
	Zhang, Dali; Li, Xinqiao; Wen, Xiangyang; Xiong, Shaolin; An, Zhenghua; Sun, Xilei; Qiao, Rui; Li, Zhengwei; Gong, Ke; Hou, Dongjie; Li, Yanguo; Liang, Xiaohua; Liu, Xiaojing; Liu, Yaqing; Peng, Wenxi; Yang, Sheng; Zhang, Fan; Zhao, Xiaoyun; Cai, Ce; Li, Chaoyang; Liu, Jiacong; Xiao, Shuo; Wang, Chenwei; Yi, Qibin and Zheng, Chao
	2021
OtherID	arXiv:2110.01796
Keyword	Instrumentation and Detectors High Energy Physics - Experiment
Subject Area	Physics
Abstract	Each satellite of the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM, mission) consists of 25 SiPM based gamma-ray detectors (GRDs). Although SiPM based GRD has merits of compact size and low bias-voltage, the drift of the SiPM gain with temperature is a severe problem for GRD performance. An adaptive voltage supply source was designed to automatically adjust the SiPM bias voltage to compensate the temperature effects and keep the gain stable. This approach has been proved to be effective during both the on-ground and in-flight tests. The in-flight measured variation of the SiPM gain is within 2%. To reduce the gain non-uniformity of GRDs, an iterative bias voltage adjustment approach is proposed and implemented. The gain non-uniformity is reduced from 17% to 0.6%. In this paper, the gain stabilization and consistency correction approach are presented and discussed in detail.
Language	英语
Citation statistics	Cited Times:2 [ADS]
Document Type	预印本
Identifier	http://ir.ihep.ac.cn/handle/311005/289906
Collection	引力波暴高能电磁对应体全天监测器（GECAM）实验物理中心粒子天体物理中心多学科研究中心东莞研究部管理与技术支持
Affiliation	中国科学院高能物理研究所
Recommended Citation GB/T 7714	Zhang, Dali,Li, Xinqiao,Wen, Xiangyang,et al. Gain stabilization and consistency correction approach for multiple SiPM-based gamma-ray detectors on GECAM. 2021.

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