Speaker
Description
After more than 15 years of operation, the ATLAS Inner Detector (ID) will take its final data this June before being replaced with a new all-silicon detector (ITk) during LHC Long Shutdown 3. The ID, consisting of a Pixel detector, a strip detector (SCT), and a straw tube detector (TRT), successfully collected data during LHC runs 1-3, under conditions that exceeded the original specifications by a large factor. Over the years, the ID faced a number of technical and operational challenges, particularly in terms of radiation damage, occupancy, and trigger rate. This talk will describe the main issues encountered and the solutions that were found to ensure highest data quality and smooth operation throughout the lifetime of the detector. The lessons learned from the ATLAS Inner Detector can provide valuable guidance for the design and operation of future experiments.