Speaker
Description
During the Long Shutdown 3 that will take place in years 2026 - 2030, a comprehensive upgrade of the ATLAS Tile Calorimeter system is planned to meet the challenges of a 1 MHz trigger rate, higher ambient radiation levels, and increased pile-up conditions. This upgrade involves a complete replacement of both on- and off-detector electronics, along with the replacement of approximately 10% of the photomultiplier tubes in the most exposed detector cells.
Test beam campaigns were performed using the beam from the Super Proton Synchrotron (SPS) accelerator at CERN from 2015 to 2025. The main goal was to validate the new electronics and record data with beams of muons, electrons and hadrons at various incident energies and impact angles to study the performance of the legacy and new electronics.
This contribution summarises the 10-year period of the ATLAS Tile Calorimeter test beam campaigns, focusing on the beam test setup, the upgrades of the calorimeter electronics, the trigger and particle identification systems. The results obtained analyzing muon, electron and hadron data will also be discussed.