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Streamlined Calibration of the ATLAS Muon Spectrometer Precision Chambers

The ATLAS Muon Spectrometer is comprised of nearly 1200 optically Monitored Drifttube Chambers (MDTs) containing 354,000 aluminum drift tubes. The chambers are configured in barrel and endcap regions. The momentum resolution required for the LHC physics reach (dp/p = 3% and 10% at 100 GeV and 1 TeV)...

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Detalles Bibliográficos
Autores principales: Levin, DS, Amram, N, Dai, T, Diehl, EB, Ferretti, C, Hindes, JM, Zhou, B
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:http://cds.cern.ch/record/1224842
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author Levin, DS
Amram, N
Dai, T
Diehl, EB
Ferretti, C
Hindes, JM
Zhou, B
author_facet Levin, DS
Amram, N
Dai, T
Diehl, EB
Ferretti, C
Hindes, JM
Zhou, B
author_sort Levin, DS
collection CERN
description The ATLAS Muon Spectrometer is comprised of nearly 1200 optically Monitored Drifttube Chambers (MDTs) containing 354,000 aluminum drift tubes. The chambers are configured in barrel and endcap regions. The momentum resolution required for the LHC physics reach (dp/p = 3% and 10% at 100 GeV and 1 TeV) demands rigorous MDT drift tube calibration with frequent updates. These calibrations (RT functions) convert the measured drift times to drift radii and are a critical component to the spectrometer performance. They are sensitive to the MDT gas composition: Ar 93%, CO2 7% at 3 bar, flowing through the detector at arate of 100,000 l hr−1. We report on the generation and application of Universal RT calibrations derived from an inline gas system monitor chamber. Results from ATLAS cosmic ray commissioning data are included. These Universal RTs are intended for muon track reconstuction in LHC startup phase.
id cern-1224842
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-12248422019-09-30T06:29:59Zhttp://cds.cern.ch/record/1224842engLevin, DSAmram, NDai, TDiehl, EBFerretti, CHindes, JMZhou, BStreamlined Calibration of the ATLAS Muon Spectrometer Precision ChambersDetectors and Experimental TechniquesThe ATLAS Muon Spectrometer is comprised of nearly 1200 optically Monitored Drifttube Chambers (MDTs) containing 354,000 aluminum drift tubes. The chambers are configured in barrel and endcap regions. The momentum resolution required for the LHC physics reach (dp/p = 3% and 10% at 100 GeV and 1 TeV) demands rigorous MDT drift tube calibration with frequent updates. These calibrations (RT functions) convert the measured drift times to drift radii and are a critical component to the spectrometer performance. They are sensitive to the MDT gas composition: Ar 93%, CO2 7% at 3 bar, flowing through the detector at arate of 100,000 l hr−1. We report on the generation and application of Universal RT calibrations derived from an inline gas system monitor chamber. Results from ATLAS cosmic ray commissioning data are included. These Universal RTs are intended for muon track reconstuction in LHC startup phase.ATL-MUON-PROC-2009-010oai:cds.cern.ch:12248422009-11-25
spellingShingle Detectors and Experimental Techniques
Levin, DS
Amram, N
Dai, T
Diehl, EB
Ferretti, C
Hindes, JM
Zhou, B
Streamlined Calibration of the ATLAS Muon Spectrometer Precision Chambers
title Streamlined Calibration of the ATLAS Muon Spectrometer Precision Chambers
title_full Streamlined Calibration of the ATLAS Muon Spectrometer Precision Chambers
title_fullStr Streamlined Calibration of the ATLAS Muon Spectrometer Precision Chambers
title_full_unstemmed Streamlined Calibration of the ATLAS Muon Spectrometer Precision Chambers
title_short Streamlined Calibration of the ATLAS Muon Spectrometer Precision Chambers
title_sort streamlined calibration of the atlas muon spectrometer precision chambers
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1224842
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AT amramn streamlinedcalibrationoftheatlasmuonspectrometerprecisionchambers
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