Final published version
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents
AU - The ATLAS collaboration
AU - Barton, A.E.
AU - Bertram, I.A.
AU - Borissov, G.
AU - Bouhova-Thacker, E.V.
AU - Fox, H.
AU - Henderson, R.C.W.
AU - Jones, R.W.L.
AU - Kartvelishvili, V.
AU - Long, R.E.
AU - Love, P.A.
AU - Muenstermann, D.
AU - Sanderswood, Izaac
AU - Smizanska, M.
AU - Tee, A.S.
AU - Walder, J.
AU - Wharton, A.M.
AU - Yexley, Melissa
PY - 2021/8/11
Y1 - 2021/8/11
N2 - 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. © 2021 CERN for the benefit of the ATLAS collaboration.
AB - 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. © 2021 CERN for the benefit of the ATLAS collaboration.
KW - Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)
KW - Radiation damage to detector materials (solid state)
KW - Charged particles
KW - Energy dissipation
KW - Microstrip devices
KW - Pixels
KW - Radiation damage
KW - Safety factor
KW - Silicon detectors
KW - Atlas pixel detectors
KW - Detector design
KW - Detector simulations
KW - Large Hadron Collider
KW - Nonionizing energy loss
KW - Physics analysis
KW - Semiconductor tracker
KW - Simulations and measurements
KW - Leakage currents
U2 - 10.1088/1748-0221/16/08/P08025
DO - 10.1088/1748-0221/16/08/P08025
M3 - Journal article
VL - 16
JO - Journal of Instrumentation
JF - Journal of Instrumentation
SN - 1748-0221
IS - 8
M1 - P08025
ER -