Design and Performance of a Silicon Tungsten Calorimeter Prototype Module and the Associated Readout

TL;DR

This paper presents the design, testing, and performance evaluation of a silicon-tungsten electromagnetic calorimeter prototype with custom ASIC readout, validated through beam experiments and simulations.

Contribution

It introduces a novel silicon-tungsten calorimeter module with a custom ASIC, demonstrating its performance in real-world test beams and comparing results with simulations.

Findings

Prototype achieved expected energy resolution.

ASIC demonstrated fast, low-power operation.

Experimental results aligned with Monte Carlo simulations.

Abstract

We describe the details of a silicon-tungsten prototype electromagnetic calorimeter module and associated readout electronics. Detector performance for this prototype has been measured in test beam experiments at the CERN PS and SPS accelerator facilities in 2015/16. The results are compared to those in Monte Carlo Geant4 simulations. This is the first real-world demonstration of the performance of a custom ASIC designed for fast, lower-power, high-granularity applications.