Title: Operational Experience and Performance with the ATLAS Pixel detector at the Large Hadron Collider at CERN
Abstract: The 4-layer Pixel Detector, a subsystem of the \textsc{ATLAS} experiment on which the tracking performance critically relies, has undergone significant hardware and readout upgrades to meet the challenges imposed by the higher collision energy, pile-up and luminosity delivered by the Large Hadron Collider (LHC) . The LHC has recently surpassed the record breaking instantaneous luminosities of 2 ×1034 cm−2s−1. The key status and performance metrics of the ATLAS Pixel Detector are summarized, and the operational experience and requirements to ensure optimum data quality and data taking efficiency are described, with special emphasis on radiation damage experience.