CERN Accelerating science

ATLAS Note
Report number ATL-MUON-PROC-2022-004
Title Construction and testing of the sMDT system for the HL-LHC ATLAS muon detector upgrade
Author(s) ATLAS MDT Collaboration
Corporate Author(s) The ATLAS collaboration
Collaboration ATLAS Collaboration
Publication 2023
Imprint 31 Jul 2022
Number of pages 2
In: Nucl.Instrum.Meth.A 1049 (2023) 168079
In: 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, Italy, 22 - 28 May 2022, pp.168079
DOI 10.1016/j.nima.2023.168079
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords Monitored drift tube ; Muon spectrometer ; Phase-II upgrade ; HL-LHC ; ATLAS
Abstract The ATLAS HL-LHC upgrade includes an upgrade to the Muon Spectrometer in which the Monitored Drift Tube (MDT) chambers in the barrel inner small-sectors are replaced with new small-diameter MDT (sMDT) chambers. The sMDT chambers will make space for a new triple-layer of Resistive Plate Chambers (RPCs) to improve the Level-1 muon triggering. There are 96 new sMDT chambers for this upgrade which are under construction at the Max Planck Institute Munich (MPI) and the University of Michigan. This document reports the construction and testing of the sMDT chambers at both production sites. Through stringent measurements on mechanical precision, noise rate, efficiency, and tracking resolution, all 56 chambers produced so far satisfy the precision and performance requirements.

Corresponding record in: Inspire


 Record created 2022-07-31, last modified 2023-11-22


  • Send to ScienceWise.info