PSD13: The 13th International Conference on Position Sensitive Detectors

Operational Experience and Performance with the ATLAS Pixel detector at the Large Hadron Collider at CERN

8 Sept 2023, 10:10

20m

St Catherine's Bernard Sunley Building (Oxford)

Talk Applications in Particle Physics Applications in security and environmental imaging

Speaker

Tobias Bisanz (Technische Universitaet Dortmund (DE))

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 the start of the LHC proton-proton collision RUN3 in 2022, the innermost layer IBL, consisting of planar and 3D pixel sensors, had received an integrated fluence of approximately Φ = 1 × 10**15
1 MeV neq/cm2.
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, and the operational experience and requirements to ensure optimum data quality and data taking efficiency will be described, with special emphasis to radiation damage experience. A quantitative analysis of charge collection, dE/dX, occupancy reduction with integrated luminosity, under-depletion effects, effects of annealing will be presented and discussed, as well as the operational issues and mitigation techniques adopted for the LHC Run3.

Presentation materials

ATL-INDET-SLIDE-2023-426.pdf