New High-Precision Drift-Tube Detectors for the ATLAS Muon Spectrometer

Abstract

Small-diameter muon drift tube (sMDT) detectors have been developed for upgrades of the ATLAS muon spectrometer. With a tube diameter of 15 mm, they provide an about an order of magnitude higher rate capability than the present ATLAS muon tracking detectors, the MDT chambers with 30 mm tube diameter. The drift-tube design and the construction methods have been optimised for mass production and allow for complex shapes required for maximising the acceptance. A record sense wire positioning accuracy of 0.005 mm has been achieved with the new design. 14 new sMDT chambers are already operational in ATLAS, further 16 are under construction for installation in the 2019-2020 LHC shutdown. For the upgrade of the barrel muon spectrometer for High-Luminosity LHC, 96 sMDT chambers will be contructed between 2020 and 2024.

proceedings of INSTR17 conference, Novosibirsk, Russia, February 2017, extended version, to be publsihed in Journal of Instrumentation

References in corpus (1)

• Performance of New High-Precision Muon Tracking Detectors for the ATLAS Experiment

Cited by in corpus (5)

• The ATLAS Experiment at the CERN Large Hadron Collider: A Description of the Detector Configuration for Run 3
• Design of a Time-to-Digital Converter ASIC and a mini-DAQ system for the Phase-2 Upgrade of the ATLAS Monitored Drift Tube detector
• Construction and testing of sMDT tubes at the University of Michigan for the ATLAS Muon Spectrometer upgrade
• Construction of Precision sMDT Detector for ATLAS Muon Spectrometer Upgrade
• Performance of Michigan sMDT Prototype Chambers for the HL-LHC ATLAS Muon Detector Upgrade