First Results from the ATLAS Muon Spectrometer Optical Alignment System

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The muon spectrometer of the ATLAS detector at the Large Hadron Collider (LHC) at CERN consists of 1182 muon chambers for precision track measurements, arranged in three concentric cylinders of up to 25m length in the central (barrel) region, and in four wheels of up to 25m diameter in each of the t...

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Autor principal: Amelung, C
Lenguaje:eng
Publicado: 2009
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2010.03.011
http://cds.cern.ch/record/1172602
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author Amelung, C
author_facet Amelung, C
author_sort Amelung, C
collection CERN
description The muon spectrometer of the ATLAS detector at the Large Hadron Collider (LHC) at CERN consists of 1182 muon chambers for precision track measurements, arranged in three concentric cylinders of up to 25m length in the central (barrel) region, and in four wheels of up to 25m diameter in each of the two endcaps. They are located between 5m and 22m from the interaction point, and each muon track is detected in three equally spaced chambers. The muon chambers are equipped with a complex high-precision optical alignment system to monitor their positions and deformations during ATLAS data-taking with an accuracy of 30-40microns, ultimately required for reconstructing high-momentum final-state muons with the desired momentum resolution of 10% at 1TeV. The alignment system, the sensors, and the readout and reconstruction software are described. The installation and commissioning of the more than 12000 sensors in the ATLAS cavern has been completed in 2008, and first data from the full system are presented.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
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spelling cern-11726022019-09-30T06:29:59Zdoi:10.1016/j.nima.2010.03.011http://cds.cern.ch/record/1172602engAmelung, CFirst Results from the ATLAS Muon Spectrometer Optical Alignment SystemDetectors and Experimental TechniquesThe muon spectrometer of the ATLAS detector at the Large Hadron Collider (LHC) at CERN consists of 1182 muon chambers for precision track measurements, arranged in three concentric cylinders of up to 25m length in the central (barrel) region, and in four wheels of up to 25m diameter in each of the two endcaps. They are located between 5m and 22m from the interaction point, and each muon track is detected in three equally spaced chambers. The muon chambers are equipped with a complex high-precision optical alignment system to monitor their positions and deformations during ATLAS data-taking with an accuracy of 30-40microns, ultimately required for reconstructing high-momentum final-state muons with the desired momentum resolution of 10% at 1TeV. The alignment system, the sensors, and the readout and reconstruction software are described. The installation and commissioning of the more than 12000 sensors in the ATLAS cavern has been completed in 2008, and first data from the full system are presented.ATL-MUON-PROC-2009-001ATL-COM-MUON-2009-010oai:cds.cern.ch:11726022009-04-16
spellingShingle Detectors and Experimental Techniques
Amelung, C
First Results from the ATLAS Muon Spectrometer Optical Alignment System
title First Results from the ATLAS Muon Spectrometer Optical Alignment System
title_full First Results from the ATLAS Muon Spectrometer Optical Alignment System
title_fullStr First Results from the ATLAS Muon Spectrometer Optical Alignment System
title_full_unstemmed First Results from the ATLAS Muon Spectrometer Optical Alignment System
title_short First Results from the ATLAS Muon Spectrometer Optical Alignment System
title_sort first results from the atlas muon spectrometer optical alignment system
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.nima.2010.03.011
http://cds.cern.ch/record/1172602
work_keys_str_mv AT amelungc firstresultsfromtheatlasmuonspectrometeropticalalignmentsystem

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