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Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents

doi: 10.1088/1748-0221/16/08/p08025 , 10.48550/arxiv.2106.09287 , 10.3204/pubdb-2021-03394 , 10.17863/cam.74116
arXiv: 2106.09287
handle: 2434/871124 , 11343/289947 , 11571/1470934 , 2440/133631 , 2108/277613 , 11250/2987928 , 1959.3/463221 , 11582/336241 , 10852/91207
doi: 10.1088/1748-0221/16/08/p08025 , 10.48550/arxiv.2106.09287 , 10.3204/pubdb-2021-03394 , 10.17863/cam.74116
arXiv: 2106.09287
handle: 2434/871124 , 11343/289947 , 11571/1470934 , 2440/133631 , 2108/277613 , 11250/2987928 , 1959.3/463221 , 11582/336241 , 10852/91207
Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents
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.
- French National Centre for Scientific Research France
- Center for Particle Physics of Marseilles France
- University of Adelaide Australia
- University of Cambridge United Kingdom
- University of Rome Tor Vergata Italy
safety, p p: scattering, energy loss, design, Detector modelling and simulations I (interaction of radiation with matter, detector modelling and simulations I (interaction of radiation with matter, 610, FOS: Physical sciences, Particle detectors, 530, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), pixel, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], detector: pixel, Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc); Radiation damage to detector materials (solid state), tracking detector, High energy physics, detector: design, etc), radiation: damage, Radiation damage to detector materials (solid state), Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc), detector, track data analysis, paper, Particle physics, interaction of photons with matter, ATLAS, semiconductor, charged particle, Settore FIS/01 - FISICA SPERIMENTALE, 620, radiation, interaction of hadrons with matter, CERN LHC Coll, semiconductor detector, semiconductor detector: microstrip, microstrip, numerical calculations: Monte Carlo, damage, p p: colliding beams, experimental results
safety, p p: scattering, energy loss, design, Detector modelling and simulations I (interaction of radiation with matter, detector modelling and simulations I (interaction of radiation with matter, 610, FOS: Physical sciences, Particle detectors, 530, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), pixel, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], detector: pixel, Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc); Radiation damage to detector materials (solid state), tracking detector, High energy physics, detector: design, etc), radiation: damage, Radiation damage to detector materials (solid state), Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc), detector, track data analysis, paper, Particle physics, interaction of photons with matter, ATLAS, semiconductor, charged particle, Settore FIS/01 - FISICA SPERIMENTALE, 620, radiation, interaction of hadrons with matter, CERN LHC Coll, semiconductor detector, semiconductor detector: microstrip, microstrip, numerical calculations: Monte Carlo, damage, p p: colliding beams, experimental results
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