ATLAS ITk tracking and readout performance

The ATLAS Inner Detector will be replaced with a new all-silicon Inner Tracker (ITk) designed for the challenging environment of the High Luminosity LHC (HL-LHC). The ITk layout of the pixel detector was recently successfully optimised to improve tracking performance and object reconstruction. The data rates of the ITk pixel detector have also been evaluated to establish that the detector read-out system can read out data at the design L0 trigger frequency of 1 MHz.