The future Large Hadron Collider (LHC) Physics program and the consequent improvement of the LHC accelerator performance set important challenges to all detector systems. This PhD thesis delineates the studies and strategies adopted to improve two different detector technologies: the replacement of precision trackers and the improvement of large muon systems.
Within the LHC tracker upgrade programs, the ATLAS Insertable B-layer (IBL) is the first upgrade of a silicon-pixel detector. The IBL Detector makes use of innovative technologies, which required complex developments and thorough quality assurance protocols for the characterization and selection of the best 14 IBL staves.
During the High Luminosity LHC phase the muon systems will be pushed close to their operation limits by the increased luminosity and high radiation environment. In this context, several aspects of gas systems and detectors operation have been studied, as the importance of robust and precise gas quality monitoring tools and strategies to reduce detector gas emissions.