The ATLAS ITk Strip Detector System for the Phase-II LHC Upgrade

ATLAS is currently preparing for the HL-LHC, with an all-silicon Inner Tracker (ITk) that will replace the current Inner Detector. The ITk will feature a pixel detector surrounded by a strip detector, with the strip system consisting of 4 barrel layers and 6 endcap disks per side. After completion of final design reviews in key areas, such as Sensors, Modules, Front-End electronics and ASICs, a large scale prototyping program has been completed in all areas successfully. An overview of the Strip System is presented here, highlighting the final design choices of sensors, module designs and ASICs. In this article, results achieved during prototyping and the current status of production and pre-production on various detector components are summarized, with an emphasis on QA and QC procedures.