The ATLAS Inner Detector commissioning and calibration
Name
Aad2010_Article_TheATLASInnerDetectorCommissio.pdf
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2.51 MB
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Adobe PDF
Checksum (MD5)
8ff246724383d06c3f852cebf09a27f2
Author(s)
ATLAS Collaboration
Taylor, Frank E
Date Issued
August 2010
Journal
European Physical Journal C: Particles and Fields
Publisher
Springer-Verlag
Citation
Aad, G. et al. “The ATLAS Inner Detector Commissioning and Calibration.” The European Physical Journal C 70, 3 (August 2010): 787–821 © 2010 CERN for the benefit of the ATLAS collaboration
Version
Final published version
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 σ p /p=(4. 83±0. 16)×10⁻⁴ GeV⁻¹ ×p[subscript T] have been measured for high momentum tracks.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/EPJC/S10052-010-1366-7
