The ATLAS Inner Detector commissioning and calibration

The ATLAS Collaboration

    Research output: Contribution to journalArticle

    66 Citations (Scopus)

    Abstract

    The ATLAS Inner Detector is a composite tracking system consisting of silicon pixels, silicon strips and straw tubes in a 2 T magnetic field. Its installation was completed in August 2008 and the detector took part in data-taking with single LHC beams and cosmic rays. The initial detector operation, hardware commissioning and in-situ calibrations are described. Tracking performance has been measured with 7. 6 million cosmic-ray events, collected using a tracking trigger and reconstructed with modular pattern-recognition and fitting software. The intrinsic hit efficiency and tracking trigger efficiencies are close to 100%. Lorentz angle measurements for both electrons and holes, specific energy-loss calibration and transition radiation turn-on measurements have been performed. Different alignment techniques have been used to reconstruct the detector geometry. After the initial alignment, a transverse impact parameter resolution of 22. 1±0. 9 μm and a relative momentum resolution σp/p=(4. 83±0. 16)×10-4 GeV-1×pT have been measured for high momentum tracks.

    Original languageEnglish
    Pages (from-to)787-821
    Number of pages35
    JournalEuropean Physical Journal C
    Volume70
    Issue number3
    DOIs
    Publication statusPublished - 2010 Dec

    Fingerprint

    Calibration
    Detectors
    Cosmic rays
    detectors
    cosmic rays
    Momentum
    actuators
    alignment
    momentum
    Silicon
    Straw
    silicon
    Angle measurement
    pattern recognition
    Pattern recognition
    installing
    strip
    Energy dissipation
    rays
    hardware

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)
    • Engineering (miscellaneous)

    Cite this

    The ATLAS Inner Detector commissioning and calibration. / The ATLAS Collaboration.

    In: European Physical Journal C, Vol. 70, No. 3, 12.2010, p. 787-821.

    Research output: Contribution to journalArticle

    The ATLAS Collaboration. / The ATLAS Inner Detector commissioning and calibration. In: European Physical Journal C. 2010 ; Vol. 70, No. 3. pp. 787-821.
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    abstract = "The ATLAS Inner Detector is a composite tracking system consisting of silicon pixels, silicon strips and straw tubes in a 2 T magnetic field. Its installation was completed in August 2008 and the detector took part in data-taking with single LHC beams and cosmic rays. The initial detector operation, hardware commissioning and in-situ calibrations are described. Tracking performance has been measured with 7. 6 million cosmic-ray events, collected using a tracking trigger and reconstructed with modular pattern-recognition and fitting software. The intrinsic hit efficiency and tracking trigger efficiencies are close to 100{\%}. Lorentz angle measurements for both electrons and holes, specific energy-loss calibration and transition radiation turn-on measurements have been performed. Different alignment techniques have been used to reconstruct the detector geometry. After the initial alignment, a transverse impact parameter resolution of 22. 1±0. 9 μm and a relative momentum resolution σp/p=(4. 83±0. 16)×10-4 GeV-1×pT have been measured for high momentum tracks.",
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