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Article
Report number arXiv:2106.09287 ; CERN-EP-2021-055
Title Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents
Author(s) ATLAS Collaboration  Show all 2867 authors
Corporate Author(s) ATLAS Collaboration
Publication 2021
Imprint 17 Jun 2021
Number of pages 47
Note 47 pages total, author list starting page 31, 12 figures, 2 tables, published in JINST. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/IDET-2020-01
In: JINST 16 (2021) P08025
DOI 10.1088/1748-0221/16/08/P08025 (publication)
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords detector ; tracker ; experimental results
Abstract Non-ionizing energy loss causes bulk damage to the silicon sensors of the ATLAS pixel and strip detectors. This damage has important implications for data-taking operations, charged-particle track reconstruction, detector simulations, and physics analysis. This paper presents simulations and measurements of the leakage current in the ATLAS pixel detector and semiconductor tracker as a function of location in the detector and time, using data collected in Run 1 (2010-2012) and Run 2 (2015-2018) of the Large Hadron Collider. The extracted fluence shows a much stronger |z|-dependence in the innermost layers than is seen in simulation. Furthermore, the overall fluence on the second innermost layer is significantly higher than in simulation, with better agreement in layers at higher radii. These measurements are important for validating the simulation models and can be used in part to justify safety factors for future detector designs and interventions.
Copyright/License publication: © 2021-2025 CERN (License: CC-BY-4.0)
preprint: © 2021-2025 CERN (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: tatjana.lenz@cern.ch


 Záznam vytvorený 2021-06-17, zmenený 2024-12-13


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