Performance of Michigan sMDT prototype chambers for the HL-LHC ATLAS muon detector upgrade
Abstract
A new small-diameter Monitored Drift Tube (sMDT) chamber has been developed for the muon spectrometer of the ATLAS experiment to handle the higher collision rates expected at the CERN High Luminosity Large Hadron Collider (HL-LHC). This paper presents measurements of the tracking resolution and hit efficiency of two prototype sMDT chambers constructed at the University of Michigan. Using cosmic-ray muons the sMDT tracking resolution of 103.7 ± 8.1 μm was measured for one chamber and 101.8 ± 7.8 μm for the other, compared with a design resolution of 106 μm. A further tracking resolution improvement to 83.4 ± 7.8 μm was obtained by using new high-gain readout electronics which will be added for HL-LHC. An average tracking efficiency of (98.5 ± 0.2)% was found for both chambers. The methodology used to determine the detector tracking resolution and efficiency, including reconstruction of sMDT data and a Geant4 simulation of the test chamber, is presented in detail.
- Authors:
-
- Univ. of Michigan, Ann Arbor, MI (United States)
- Publication Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1866060
- Grant/Contract Number:
- SC0007859
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Instrumentation
- Additional Journal Information:
- Journal Volume: 16; Journal Issue: 11; Journal ID: ISSN 1748-0221
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 43 PARTICLE ACCELERATORS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Muon spectrometers; Wire chambers; Detector modelling and simulations I
Citation Formats
Nelson, K., Guo, Y., Amidei, D., and Diehl, E. Performance of Michigan sMDT prototype chambers for the HL-LHC ATLAS muon detector upgrade. United States: N. p., 2021.
Web. doi:10.1088/1748-0221/16/11/p11027.
Nelson, K., Guo, Y., Amidei, D., & Diehl, E. Performance of Michigan sMDT prototype chambers for the HL-LHC ATLAS muon detector upgrade. United States. https://doi.org/10.1088/1748-0221/16/11/p11027
Nelson, K., Guo, Y., Amidei, D., and Diehl, E. Fri .
"Performance of Michigan sMDT prototype chambers for the HL-LHC ATLAS muon detector upgrade". United States. https://doi.org/10.1088/1748-0221/16/11/p11027. https://www.osti.gov/servlets/purl/1866060.
@article{osti_1866060,
title = {Performance of Michigan sMDT prototype chambers for the HL-LHC ATLAS muon detector upgrade},
author = {Nelson, K. and Guo, Y. and Amidei, D. and Diehl, E.},
abstractNote = {A new small-diameter Monitored Drift Tube (sMDT) chamber has been developed for the muon spectrometer of the ATLAS experiment to handle the higher collision rates expected at the CERN High Luminosity Large Hadron Collider (HL-LHC). This paper presents measurements of the tracking resolution and hit efficiency of two prototype sMDT chambers constructed at the University of Michigan. Using cosmic-ray muons the sMDT tracking resolution of 103.7 ± 8.1 μm was measured for one chamber and 101.8 ± 7.8 μm for the other, compared with a design resolution of 106 μm. A further tracking resolution improvement to 83.4 ± 7.8 μm was obtained by using new high-gain readout electronics which will be added for HL-LHC. An average tracking efficiency of (98.5 ± 0.2)% was found for both chambers. The methodology used to determine the detector tracking resolution and efficiency, including reconstruction of sMDT data and a Geant4 simulation of the test chamber, is presented in detail.},
doi = {10.1088/1748-0221/16/11/p11027},
journal = {Journal of Instrumentation},
number = 11,
volume = 16,
place = {United States},
year = {Fri Nov 19 00:00:00 EST 2021},
month = {Fri Nov 19 00:00:00 EST 2021}
}
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