Performance of a Tungsten-Cerium Fluoride Sampling Calorimeter in High-Energy Electron Beam Tests

TL;DR

This paper evaluates a tungsten-cerium fluoride sampling calorimeter's performance using high-energy electron beams, comparing experimental results with simulations to assess response uniformity and energy resolution.

Contribution

It introduces a novel tungsten-cerium fluoride sampling calorimeter prototype and provides detailed performance analysis with experimental and simulated data.

Findings

Good response uniformity across the detector face

Energy resolution consistent with simulations

Effective performance in high-energy electron detection

Abstract

A prototype for a sampling calorimeter made out of cerium fluoride crystals interleaved with tungsten plates, and read out by wavelength-shifting fibres, has been exposed to beams of electrons with energies between 20 and 150 GeV, produced by the CERN Super Proton Synchrotron accelerator complex. The performance of the prototype is presented and compared to that of a Geant4 simulation of the apparatus. Particular emphasis is given to the response uniformity across the channel front face, and to the prototype's energy resolution.