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arXiv 1602.07015physics.ins-det
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DAMPE探测器ECAL的标定和电子能量重建

The calibration and electron energy reconstruction of the BGO ECAL of the DAMPE detector

Zhiyong Zhang, Chi Wang, Jianing Dong, Yifeng Wei, Sicheng Wen, Yunlong Zhang, Zhiying Li, Changqing Feng, Shanshan Gao, ZhongTao Shen, Deliang Zhang, Junbin Zh… 展开作者

Zhiyong Zhang, Chi Wang, Jianing Dong, Yifeng Wei, Sicheng Wen, Yunlong Zhang, Zhiying Li, Changqing Feng, Shanshan Gao, ZhongTao Shen, Deliang Zhang, Junbin Zhang, Qi Wang, SiYuan Ma, Di Yang, Di Jiang, Dengyi Chen, Yiming Hu, Guangshun Huang, Xiaolian Wang, Zizong Xu, Shubin Liu, Qi An, Yizhong Gong

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12 pages, 13 figures
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摘要：

暗物质粒子探测器（DAMPE）是一个空间实验，旨在通过测量高达10 TeV的光子，电子和正电子的光谱来间接寻找暗物质。BGO电磁量能器（ECAL）是其能量测量的主要子探测器。本文简要介绍了BGO ECAL的仪器和研制情况。详细讨论了用宇宙射线和束流粒子进行基座、最小电离粒子（MIP）峰、倍增极比和衰减长度的地面标定。最后给出了束流实验中电子的能量重建结果。

英文摘要：

The DArk Matter Particle Explorer (DAMPE) is a space experiment designed to search for dark matter indirectly by measuring the spectra of photons, electrons, and positrons up to 10 TeV. The BGO electromagnetic calorimeter (ECAL) is its main sub-detector for energy measurement. In this paper, the instrumentation and development of the BGO ECAL is briefly described. The calibration on the ground, including the pedestal, minimum ionizing particle (MIP) peak, dynode ratio, and attenuation length with the cosmic rays and beam particles is discussed in detail. Also, the energy reconstruction results of the electrons from the beam test are presented.

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