The silicon matrix for the prototype for the Dark Matter Particle Explorer

TL;DR

This paper presents a silicon matrix detector prototype for DAMPE, designed to measure cosmic ray energy and position, with initial testing results demonstrating its effectiveness in detecting MIPs and mapping positions.

Contribution

Introduces a silicon PIN detector matrix prototype for DAMPE, enabling sea level cosmic ray detection and initial performance evaluation.

Findings

Successful detection of MIPs energy spectrum

Effective position sensitive mapping achieved

Prototype demonstrates potential for cosmic ray measurements

Abstract

A new generation detector for the high energy cosmic ray - the DAMPE(DArk Matter Particle Explorer) is a satellite based project. Its main object is the measurement of energy spectrum of cosmic ray nuclei from 100GeV to 100TeV, the high energy electrons and gamma ray from 5GeV to 10TeV. A silicon matrix detector described in this paper, is employed for the sea level cosmic ray energy and position detection while the prototype testing of the DAMPE. This matrix is composed by the 180 silicon PIN detectors, which covers an area of 32*20 cm2. The primary testing results are shown including MIPs energy spectrum and the position sensitive map.