1. Calibration of the DAMPE Plastic Scintillator Detector and its on-orbit performance
- Author
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Ding, Meng, Zhang, Yapeng, Zhang, Yong-Jie, Wang, Yuan-Peng, Dong, Tie-Kuang, De Benedittis, Antonio, Bernardini, Paolo, Fang, Fang, Li, Yao, Liu, Jie, Ma, Peng-Xiong, Sun, Zhi-Yu, Gallo, Valentina, Vitillo, Stefania, Wang, Zhao-Min, Yu, Yu-Hong, Yue, Chuan, Yuan, Qiang, Zhou, Yong, and Zhang, Yun-Long
- Subjects
Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
DArk Matter Particle Explorer (DAMPE) is a space-borne apparatus for detecting the high-energy cosmic-rays like electrons, $\gamma$-rays, protons and heavy-ions. Plastic Scintillator Detector (PSD) is the top-most sub-detector of the DAMPE. The PSD is designed to measure the charge of incident high-energy particles and it also serves as a veto detector for discriminating $\gamma$-rays from charged particles. In this paper, PSD on-orbit calibration procedure is described, which includes five steps of pedestal, dynode correlation, response to minimum-ionizing particles (MIPs), light attenuation function and energy reconstruction. A method for reconstructing the charge of incident high energy cosmic-ray particles is introduced. The detection efficiency of each PSD strip is verified to be above 99.5%, the total efficiency of the PSD for charged particles is above 99.99%., Comment: 11 pages, 16 figures, Submitted to Research in Astronomy and Astrophysics (RAA)
- Published
- 2018
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