Operation and performance of the ATLAS semiconductor tracker

UNSPECIFIED (2014) Operation and performance of the ATLAS semiconductor tracker. Journal of Instrumentation, 9: P08009. ISSN 1748-0221

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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, δ-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

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Journal Article
Journal or Publication Title:
Journal of Instrumentation
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Published under the terms of the Creative Commons Attribution 3.0 License by IOP Publishing Ltd and Sissa Medialab srl. Any further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation and DOI.
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?? instrumentationmathematical physics ??
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Deposited On:
30 Oct 2014 14:22
Last Modified:
14 Feb 2024 00:54