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arXiv · 1703.00098

The Plastic Scintillator Detector at DAMPE

Yuhong Yu·Zhiyu Sun·Hong Su·Yaqing Yang·Jie Liu·Jie Kong·Guoqing Xiao·Xinwen Ma·Yong Zhou·Hongyun Zhao·Dan Mo·Yongjie Zhang·Peng Yang·Junling Chen·Haibo Yang·Fang Fang·Shengxia Zhang·HuiJun Yao·Jinglai Duan·Xiaoyang Niu·Zhengguo Hu·Zhaomin Wang·Xiaohui Wang·Jingzhe Zhang·Wenqiang Liu
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Abstract

he DArk Matter Particle Explorer (DAMPE) is a general purposed satellite-borne high energy $\gamma-$ray and cosmic ray detector, and among the scientific objectives of DAMPE are the searches for the origin of cosmic rays and an understanding of Dark Matter particles. As one of the four detectors in DAMPE, the Plastic Scintillator Detector (PSD) plays an important role in the particle charge measurement and the photons/electrons separation. The PSD has 82 modules, each consists of a long organic plastic scintillator bar and two PMTs at both ends for readout, in two layers and covers an overall active area larger than 82 cm $\times$ 82 cm. It can identify the charge states for relativistic ions from H to Fe, and the detector efficiency for Z=1 particles can reach 0.9999. The PSD has been successfully launched with DAMPE on Dec. 17, 2015. In this paper, the design, the assembly, the qualification tests of the PSD and some of the performance measured on the ground have been described in detail.

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Yuhong Yu, Zhiyu Sun, Hong Su, Yaqing Yang, Jie Liu, Jie Kong, Guoqing Xiao, Xinwen Ma, Yong Zhou, Hongyun Zhao, Dan Mo, Yongjie Zhang, Peng Yang, Junling Chen, Haibo Yang, Fang Fang, Shengxia Zhang, HuiJun Yao, Jinglai Duan, Xiaoyang Niu, Zhengguo Hu, Zhaomin Wang, Xiaohui Wang, Jingzhe Zhang, Wenqiang Liu. 2017-03-01. The Plastic Scintillator Detector at DAMPE. https://doi.org/10.1016/j.astropartphys.2017.06.004

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