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Operation and performance of the ATLAS semiconductor tracker
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 2886
2014 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 9, UNSP P08009- p.Article in journal (Refereed) Published
Abstract [en]

The semiconductor tracker is a silicon microstrip detector forming part of the inner tracking system of the ATLAS experiment at the LHC. The operation and performance of the semiconductor tracker during the first years of LHC running are described. More than 99% of the detector modules were operational during this period, with an average intrinsic hit efficiency of (99.74 +/- 0.04)%. The evolution of the noise occupancy is discussed, and measurements of the Lorentz angle, delta-ray production and energy loss presented. The alignment of the detector is found to be stable at the few-micron level over long periods of time. Radiation damage measurements, which include the evolution of detector leakage currents, are found to be consistent with predictions and are used in the verification of radiation background simulations.

Place, publisher, year, edition, pages
2014. Vol. 9, UNSP P08009- p.
Keyword [en]
Solid state detectors, Charge transport and multiplication in solid media, Particle tracking detectors (Solid-state detectors), Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-154483DOI: 10.1088/1748-0221/9/08/P08009ISI: 000341927600037Scopus ID: 2-s2.0-84971284036OAI: oai:DiVA.org:kth-154483DiVA: diva2:757076
Funder
Swedish Research Council
Note

QC 20141021

Available from: 2014-10-21 Created: 2014-10-21 Last updated: 2017-12-05Bibliographically approved

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Strandberg, Jonas

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  • apa
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