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Calibration of the DAMPE Plastic Scintillator Detector and its on-orbit performance
- Source :
- Vol 19, No 3 (2019)
- Publication Year :
- 2018
-
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%.<br />Comment: 11 pages, 16 figures, Submitted to Research in Astronomy and Astrophysics (RAA)
- Subjects :
- Astrophysics - Instrumentation and Methods for Astrophysics
Subjects
Details
- Database :
- arXiv
- Journal :
- Vol 19, No 3 (2019)
- Publication Type :
- Report
- Accession number :
- edsarx.1810.09901
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1674-4527/19/3/47