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. |