Speaker
Description
The tracking performance of the ATLAS detector relies critically on its 4-layer Pixel Detector. As the closest detector component to the interaction point, this detector is subjected to a significant amount of radiation over its lifetime. At present (in 2023 LHC proton-proton collision RUN3) ATLAS Pixel Detector on innermost layers, consisting of planar and 3D pixel sensors, operate after integrating fluence of O($10^{15}$) 1 MeV n-eq cm$^{-2}$.
The ATLAS collaboration is continually evaluating the impact of radiation on the Pixel Detector. In this talk the key status and performance metrics of the ATLAS Pixel Detector are summarised, putting focus on performance and operating conditions with special emphasis to radiation damage: charge collection in data and modelling with radiation damage simulation; 3D sensors performance and comparison with planar sensors vs fluence; operational issues at high rate and mitigation techniques adopted for LHC Run3.
| Submission declaration | Original and unplublished |
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