Estudo e desenvolvimento de sistemas eletrônicos para o calorímetro hadrônico de telhas no cenário de alta luminosidade do LHC

Abstract

The LHC is the most energetic particle accelerator ever built. Run by CERN, this fantastic machine lays underground, near the Franco-Swiss border. One of its main experiments, ATLAS, is currently going through a planned technical stop, targeting both a consolidation of the detector’s electronics and a technology replacement, preparing the experiment to a new stage in the LHC operation, where the protons collision rate will increase largely. In such context, this dissertation addresses the study and the development of electronic systems for TileCal, one of ATLAS calorimeters. Primarily, two new systems will be discussed: the Mobile Drawer Integrity Checking System, known as MobiDICK, and the Tile-Muon project. Regarding the former, we’ll bring details of the fourth version of a system used to check quantitatively and qualitatively the electronics of TileCal. This new version also provides the system with the ability to test the new technologies that will be used in the calorimeter. The ambitious Tile-Muon project aims at using TileCal for muon identification, with the goal of raising the efficiency of event selection in ATLAS. This proposal requires the development of a new electronic structure for support, which will also be presented in this dissertation. Analysis of TileCal’s electronics using MobiDICK will be shown, revealing good performance, along with a characterization of the muon signal, a fundamental study for validation and development of the Tile-Muon project.