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The ATLAS Inner Detector commissioning and calibration
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
Univ Michigan, Dept Phys, Randall Lab.ORCID iD: 0000-0002-8913-0981
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2010 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 70, no 3, 787-821 p.Article in journal (Refereed) Published
Abstract [en]

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 mu m and a relative momentum resolution sigma (p) /p=(4.83 +/- 0.16)x10(-4) GeV(-1)xp (T) have been measured for high momentum tracks.

Place, publisher, year, edition, pages
2010. Vol. 70, no 3, 787-821 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-29549DOI: 10.1140/epjc/s10052-010-1366-7ISI: 000285200000013Scopus ID: 2-s2.0-79651474069OAI: oai:DiVA.org:kth-29549DiVA: diva2:395587
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Note
QC 20110207Available from: 2011-02-07 Created: 2011-02-07 Last updated: 2017-12-11Bibliographically approved

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Strandberg, Jonas

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CiteExportLink to record
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Citation style
  • apa
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