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题名: Temperature effects on MIPs in the BGO calorimeters of DAMPE
作者: Wang, Yuan-Peng; Wen, Si-Cheng; Jiang, Wei; Yue, Chuan; Zhang, Zhi-Yong; Wei, Yi-Feng; Zhang, YunLong; Zang, Jing-Jing; Wu, Jian
刊名: CHINESE PHYSICS C
出版日期: 2017
卷号: 41, 期号:10, 页码:106001-
英文摘要: In this paper, we present a study of temperature effects on BGO calorimeters using proton MIPs collected in the first year of operation of DAMPE. By directly comparing MIP calibration constants used by the DAMPE data production pipe line, we find an experimental relation between the temperature and signal amplitudes of each BGO bar: a general deviation of -1.162%/degrees C, and -0.47%/degrees C to -1.60%/degrees C statistically for each detector element. During 2016, DAMPE's temperature changed by similar to 8 degrees C due to solar elevation angle, and the corresponding energy scale bias is about 9%. By frequent MIP calibration operation, this kind of bias is eliminated to an acceptable value.
语种: 英语
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/17560
Appears in Collections:中国科学院紫金山天文台研究生部_学生文章

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