Scintillator-SiPM Detector for Tracking and Energy Deposition Measurements

TL;DR

This paper introduces a cost-effective, high-precision particle detector combining plastic scintillators and SiPMs, with validated models and tests suitable for spaceborne experiments.

Contribution

It presents a novel detector design with an analytical model and numerical algorithm, validated through simulations and laboratory tests for space applications.

Findings

High accuracy in spatial and energy measurements

Agreement between numerical calculations and GEANT4 simulations

Successful laboratory validation of detector performance

Abstract

An innovative particle detector that offers a compelling combination of cost-effectiveness and high accuracy is introduced. The detector features plastic scintillators paired with a sparse arrangement of SiPMs, strategically positioned within a unique opto-mechanical framework. This configuration delivers precise measurements of spatial impact position and energy deposition of impinging particles. The manuscript describes the detector's physical model complemented by an analytical representation. These calculations underpin a numerical algorithm, facilitating the estimation of particle impingement position and energy deposition. The results of the numerical calculations are compared with the output of GEANT4 simulations and evaluated by rigorous laboratory testing. An array of these detectors, intended for deployment in a spaceborne experiment, underwent detailed design, manufacturing, and testing. Their performance and alignment with the physical model were validated through meticulously conducted ground-based laboratory experiments, conclusively affirming the detector's properties.