IMB-CNM PhD Thesis Defense: Low Gain Avalanche Detectors (LGADs and iLGADs) for High-Energy Physics and Synchrotron Applications
PhD Thesis Defense of Albert Doblas Moreno
Supervisors:
- David Flores Gual (IMB-CNM)
- Salvador Hidalgo Villena (IMB-CNM)
PhD Committee:
- Manuel Lozano Fantoba (IMB-CNM)
- Maria Pilar Casado Lechuga (IFAE-UAB)
- Iván Vila Alvarez (IFCA-CSIC)
University: UAB
Abstract:
This thesis presents the development of Low Gain Avalanche Detectors (LGAD) and iLGAD at IMB-CNM (CSIC) for use in High Energy Physics experiments and synchrotron applications. The Large Hadron Collider (LHC) is at the center of the eff orts of the entire particle physics community, as it is the most powerful particle accelerator in the world. It is planned that the LHC will be upgraded (HL-LHC), providing a higher luminosity that will lead to a wider range of data collected in the experiments, thus establishing a new paradigm in high-energy physics. However, particle detectors capable of precisely measuring the trace and time when charged particles pass through the detector are needed. The development of radiation detectors is not only based on experiments in particle physics, but they are also commonly used in synchrotrons, in which X-Ray beams are used for various applications. In both applications, radiation detectors are subject to highly radioactive environments, so their performance is aff ected. Therefore, there is a commitment to optimizing the design of these detectors so that they are able to provide optimum performance under these conditions. This work describes the design, fabrication, and characterization of LGAD detectors for use in the HL-LHC. In addition, other variants such as the Inverse LGAD (iLGAD) or the nLGAD (LGAD with n-type substrates) have been optimized and fabricated to cover a wide range of applications within the charged particle and X-Ray detection.