Dark Matter Particle Explorer (DAMPE)

Scientific objective

DAMPE is a high-energy particle detector optimized for studies of CREs and γ –rays up to about 10 TeV, which can measure the GeV-TeV cosmic ray electrons (including positrons) and gamma-rays with unprecedentedly high energy resolution. It can also measure nuclei to about 100 TeV per nucleon (Chang et al. 2017).Currently, DAMPE has been in orbit for 7 years and is still in the long routine operation phase.

Payloads

The DAMPE instrument, from top to bottom, consists of a plastic scintillator detector(PSD), a silicon–tungsten tracker-converter detector(STK), a bismuth germanium oxide (BGO) imaging calorimeter, and a neutron detector(NUD).

High-energy electron detection:

Detect Energy Region 5~10,000GeV
Energy Resolution 1.5%@800GeV
Angular Resolution 0.5︒@800GeV
Low particle background contamination Ability >100,000
Geometric Factor >0.3m2.sr

High-energy gamma-ray detection :

Detect Energy Region 5~10,000GeV
Energy Resolution 1.5%@800GeV
Angular Resolution 0.5︒@800GeV
Electrons and Gamma ray Distinguish Ability   >20
Geometric Factor > >0.2m2.sr

Cosmic Ray Detection:

Detect Energy Region 100~100,000GeV
Energy Resolution Better than 40%@800GeV
Angular Resolution 1.0︒@1TeV
Geometric Factor >0.2m2.sr