Performance of the ATLAS Muon Drift-Tube Chambers at High Background Rates and in Magnetic Fields

TL;DR

This paper evaluates the performance of ATLAS muon drift-tube chambers under high magnetic fields and radiation backgrounds, comparing experimental data with detailed simulation predictions to ensure reliable operation in collider environments.

Contribution

It provides a comprehensive analysis of drift-tube chamber performance in challenging conditions, validated by test-beam data and simulation comparisons.

Findings

Chamber performance remains robust under high background rates.

Simulation accurately predicts experimental results.

Magnetic fields influence drift-tube resolution.

Abstract

The ATLAS muon spectrometer uses drift-tube chambers for precision tracking. The performance of these chambers in the presence of magnetic field and high radiation fluxes is studied in this article using test-beam data recorded in the Gamma Irradiation Facility at CERN. The measurements are compared to detailed predictions provided by the Garfield drift-chamber simulation programme.