Speaker
Description
The tracking and vertexing performance of the ATLAS detector relies critically on the silicon and gaseous tracking subsystems that form the ATLAS Inner Detector. They have been operated successfully with high performance in LHC since Run 1 (2010) up to the current date. Those subsystems have undergone significant upgrades to meet the challenges imposed by the higher pileup and luminosity, that are being delivered by the LHC, well beyond design. Furthermore, the Inner Detector was exposed to a radiation dose higher than what has ever been
experienced in any other detectors in high energy physics experiments. Effects of radiation damage on silicon sensors and front-end ASICs were intensively studied. The key status and performance metrics of the Pixel Detector, the Semi Conductor Tracker, and the Transition Radiation Tracker are summarized, and the operational experience and requirements to ensure optimum data quality and data taking efficiency are described.
