Speaker
Description
An upgraded all silicon Inner Tracker (ITk) is under construction for the HL-LHC upgrade of the ATLAS detector. This new detector system will be required to maintain and improve tracking performance and vertex reconstruction in the high pileup environment and to handle the increased radiation expected in the HL-LHC. ITk is comprised of the silicon strip and silicon pixel detectors. The US is responsible for building the two innermost layers of the silicon pixel detector called the Inner System. This system constitutes a barrel section and two endcaps, which together have approximately 1 billion pixels. We present an overview of the Inner System and the challenges involved in assembly. This presentation will discuss specific solutions that have been developed to enable successful production. This presentation will also discuss the ongoing quality assurance tests that are being done during preproduction and development of rigorous quality control tests that will be setup for production. The successful production and assembly of the Inner System are essential to facilitate the tracking and vertex reconstruction required for the physics studies of the ATLAS experiment at the HL-LHC.
