Speaker
Description
The ATLAS experiment will replace its existing Inner Detector with the new Inner Tracker (ITk) to cope with the operating conditions of the high-luminosity phase of the LHC (HL-LHC) scheduled to start in 2030. ITk is an all-silicon tracker with a pixel detector core surrounded by a strip detector resulting to an almost 180 m2 total silicon surface. This new tracker is designed to withstand the radiation damage due to hadron fluences of over 2x10^16 neq/cm2 accumulated at the maximum integrated luminosity of 4000 fb-1 to be attained by the end of the HL-LHC operation. It will also allow for efficient charged particle tracking in a very dense collision environment.
After an extensive prototyping phase, ITk is currently in pre-production and will transition into production mode by the end of 2025. In this contribution the design of the ITk detector and its expected performance will be presented. An overview of the current status of the two main pixel and strip detector subsystems as well as the associated common infrastructure, will be provided. Particular emphasis will be given on the preparation for production and its more challenging aspects.
