The on-orbit calibration of DArk Matter Particle Explorer
2019
Abstract The DArk Matter Particle Explorer (DAMPE), a satellite-based
cosmic rayand gamma-ray
detector, was launched on December 17, 2015, and began its on-orbit operation on December 24, 2015. In this work we document the on-orbit calibration procedures used by DAMPE and report the calibration results of the Plastic Scintillator strip
Detector(PSD), the Silicon-Tungsten tracKer-converter (STK), the BGO imaging calorimeter (BGO), and the Neutron
Detector(NUD). The results are obtained using Galactic
cosmic rays, bright known GeV gamma-ray sources, and charge injection into the front-end electronics of each sub-
detector. The determination of the boundary of the
South Atlantic Anomaly(SAA), the measurement of the live time, and the alignments of the
detectorsare also introduced. The calibration results demonstrate the stability of the
detectorsin almost two years of the on-orbit operation.
Keywords:
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Correction
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