Simulation of DAMPE silicon microstrip detectors in the $\rm Allpix^{2}$ framework

TL;DR

This paper presents a new simulation technique for silicon micro-strip detectors using the Allpix^{2} framework, validated with DAMPE experiment data, enhancing the accuracy of performance predictions in space-based gamma-ray and cosmic-ray detection.

Contribution

Developed a novel simulation method for silicon micro-strip detectors within the Allpix^{2} framework incorporating electric field effects, validated against experimental data.

Findings

Simulation accurately reproduces beam and flight data

Allpix^{2} effectively models carrier drift in silicon detectors

Framework improves performance prediction accuracy

Abstract

Silicon strip detectors have been widely utilized in space experiments for gamma-ray and cosmic-ray detections thanks to their high spatial resolution and stable performance. For a silicon micro-strip detector, the Monte Carlo simulation is recognized as a practical and cost-effective approach to verify the detector performance. In this study, a technique for the simulation of the silicon micro-strip detector with the $\rm Allpix^{2}$ framework is developed. By incorporating the electric field into the particle transport simulation based on Geant4, this framework could precisely emulate the carrier drift in the silicon micro-strip detector. The simulation results are validated using the beam test data as well as the flight data of the DAMPE experiment, which suggests that the $\rm Allpix^{2}$ framework is a powerful tool to obtain the performance of the silicon micro-strip detector.