Analysis of radiation damage in pixel sensors of the LHCb experiment and development of the HPLV ventilator

The LHCb experiment, one of four large experiments at the LHC, studies heavy flavour particle physics. The experiment underwent a major upgrade to improve its performance in the LHC new higher energy and luminosity conditions. In this work, the radiation damage was studied in the new VELO pixel sensors, the LHCb detector closest to the proton collision point, at high fluences. In addition, a method was developed to estimate the fluence in the detector sensors from measurements of their electronic noise. For this, an experiment to study the characterization of silicon sensors was set up and its measurements analysed. The measurement results validated the method and it can be applied during the detector operation in the coming years. Due to the Covid-19 pandemic, the master's project moved towards a second goal, to contribute to the development of a mechanical lung ventilator. The High Performance Low Cost Ventilator (HPLV) is a high-quality, low-cost mechanical ventilator designed for the treatment of acute respiratory illnesses. In this work, a part of the ventilator graphic interface software was developed, together with the integration and adaptation of the electronics. On the software side, unit tests were carried out and the respirator graphic interface was translated into Portuguese, as well as a modular implementation for other languages. On the electronics side, all the hardware was assembled, tuned and tested to improve performance. An HPLV prototype, adapted to parts purchased in Brazil, was assembled and tested at Laboratório de Partículas Elementares (LAPE), at IF-UFRJ.