A Multi-APD readout for EL detectors

TL;DR

This paper presents a novel multi-APD readout system for electroluminescence detectors, demonstrating its potential for high energy resolution and moderate position resolution in xenon-based applications.

Contribution

It introduces a new avalanche photodiode-based readout method for electroluminescence detectors, showing promising experimental results.

Findings

High energy resolution achieved in xenon at 1-1.65 bar

Moderate position resolution demonstrated

Effective detection of VUV photons

Abstract

Detectors with an electroluminesence readout show an excellence performance in respect of energy resolution making them interesting for various applications as X-ray detection, double beta and dark matter experiments, Compton and gamma cameras, etc. In the following the study of a readout based on avalanche photo diodes to detect directly the VUV photons is presented. Results of measurements with 5 APDs in xenon at pressures between 1 and 1.65 bar are shown indicating that such a readout can provide excellent energy and a moderate position resolution.