222Rn as a tracer for air mass transport characterization at 100-m-high tower in the south-west Spanish coast 

    Grossi, Claudia (Fecha de defensa: 2012-03-30)

    Es los últimos años se han llevado a cabo importantes trabajos de investigación, tomando el gas radón como elemento de evaluación en modelos de transporte atmosférico y así estimar el flujo de partículas. Además la utilización ...

    Analysis of energetic particle-driven Alfvénic instabilities in tokamak and stellarator plasmas using three dimensional numerical tools 

    Rakha, Allah (Fecha de defensa: 2019-09-27)

    In this thesis, a detailed analysis of the experientially observed energetic particle-driven Alfvénic instabilities in tokamak and stellarator plasmas using three dimensional numerical tools based on the reduced MHD model ...

    Analysis of ICRF heating schemes for tokamaks using predictive integrated plasma modelling 

    Bensadón Oliart, Tomás (Fecha de defensa: 2024-07-05)

    (English) Heating plasmas to fusion-relevant temperatures stands as a pivotal factor in magnetically confined fusion plasmas. The application of radio frequency (RF) heating through electromagnetic waves in the ion cyclotron ...

    Automation of the Monte Carlo simulation of medical linear accelerators 

    Rodríguez Castillo, Miguel Lázaro (Fecha de defensa: 2016-02-05)

    The main result of this thesis is a software system, called PRIMO, which simulates clinical linear accelerators and the subsequent dose distributions using the Monte Carlo method. PRIMO has the following features: (i) it ...

    Catalytic hydrogen production over RhPd/CeO2 catalysts and CO purification over Au/TiO2 catalysts 

    Jiménez Divins, Núria (Fecha de defensa: 2015-04-10)

    This Thesis focuses on the study of the catalytic production of hydrogen from a biofuel, namely the bioethanol. It also studies the subsequent purification of pre-cleaned reformate streams. The end use of the hydrogen ...

    Comparative study of Final Focus Systems for CLIC and other luminosity enhancement studies for future linear colliders 

    García Morales, Héctor (Fecha de defensa: 2015-01-16)

    The 4th of July 2012 was a milestone date in the history of physics of the last decades. The discovery of the Higgs boson at the ATLAS and CMS experiments thanks to the proton collisions delivered by the LHC not only has ...

    Computational analysis of ion cyclotron resonance frequency heating for JET experiments 

    Gallart Escolà, Dani (Fecha de defensa: 2019-09-27)

    Heating plasmas to a relevant fusion temperature is one of the key aspects of magnetically confined fusion plasmas. Radio frequency (RF) heating with electromagnetic waves in the ion cyclotron range of frequencies (ICRF) ...

    Cylindrical microplane model for fiber reinforced polymer composites 

    Sabounchi, Saeed (Fecha de defensa: 2023-04-13)

    (English) Fiber-reinforced polymers (FRPs) are the most used composite materials in many applications, from broom handle to the main structure of advanced aircraft. Despite the enormous research done on these materials, ...

    Desarrollo y aplicación de herramientas de valoración de riesgos tecnológicos en centrales nucleares españolas a partir de la técnica de "Análisis Probabilista de Seguridad" 

    Díaz Bayona, Pedro (Fecha de defensa: 2018-04-06)

    The PhD thesis "Desarrollo y aplicación de herramientas de valoración de riesgos tecnológicos en centrales nucleares españolas a partir de la técnica de Análisis Probabilista de Seguridad” results from the research projects ...

    Design and higher order optimisation of final focus systems for linear colliders 

    Marín Lacoma, Eduardo (Fecha de defensa: 2012-12-21)

    The accelerator and particle physics communities are considering a lepton Linear Collider LC as the most appropriate machine to carry out high precision particle physics research in the TeV energy regime. The Compact Linear ...

    Design of the BELEN detector for wide energy range with flat and high detection efficiency 

    Riego Pérez, Albert (Fecha de defensa: 2016-05-30)

    The main objective of this work is to design the BEta-deLayEd Neutron detector (BELEN) detector for FAIR (Facility for Antiproton Ion Research). The purpose of this detector is the measurement of neutron emission probabilities ...

    Development and assessment of estimate methods for internal dosimetry using PET/CT 

    López Vilanova, Natàlia (Fecha de defensa: 2019-04-03)

    The aim of this thesis was to assess and develop internal dose calculations methods in diagnostic and therapeutic nuclear medicine procedures to patients undergone PET/CT explorations. Towards this objective, the accuracy ...

    Development of a solid state amplifier for the 3rd harmonic cavity for ALBA synchrotron light source 

    Hazami, Zahra (Fecha de defensa: 2020-01-29)

    In Synchrotron Light Source facilities with high energy and low emittance electron beams different techniques for improving the quality of the synchrotron light for the users are applied. With this aim ALBA, the Spanish ...

    Development of the new AINA code and its application to the Safety Analysis of the European DEMO designs 

    Baeza Pérez, Eduard (Fecha de defensa: 2019-07-22)

    A conclusion that can be drawn from the historical safety analyses developed for tokamaks fusion reactors is that some of the major risks involve incidents in the vacuum vessel. In order to evaluate plasma evolution and ...

    Evaluación de procedimientos desde la perspectiva probabilistica para la seguridad nuclear: aplicación a un reactor Westinghouse PWR 

    Martínez Cid, Manuel (Fecha de defensa: 2012-11-09)

    Probabilistic Risk Assessment for the evaluation of procedures in the Nuclear Safety field. Application to a pressurized water reactor. The studies contained in this PhD are involved in the Nuclear Safety research field. ...

    Evaluation of TH multi-scale coupling methods in BEPU analysis 

    Casamor Vidal, Max (Fecha de defensa: 2022-10-11)

    The combined use of thermal-hydraulics system with sub-channel codes (TH-TH coupling) in transient analysis provides an integrated tool with the capability of modelling in detail both the core thermal-hydraulic conditions ...

    First measurement of beta-decay half-lives and neutron emission probabilities in several isotopes beyond N = 126 

    Caballero Folch, Roger (Fecha de defensa: 2015-06-05)

    In this work beta-decay half-lives and neutron-emission probability values have been experimentally determined for first time in several nuclei beyond the neutron-shell closure at N=126. To this aim the accelerator complex ...

    Heat transfer correlations for liquid metal flows under nuclear fusion conditions 

    Suárez Cambra, Daniel (Fecha de defensa: 2023-07-06)

    (English) This thesis focuses on modeling the circulation of liquid metal through the breeding blanket channels of a tokamak fusion reactor. Apart from extracting the heat produced by the nuclear reactions of the plasma, ...

    Historical review of fire safety at NPP and application of fire PSA to Westinghouse PWR NPP in the frame of risk-informed decision making by 

    Asamoah, Matthew (Fecha de defensa: 2018-10-05)

    The importance of fire as a potential initiator of multiple-system failures took on a new perspective after the cable-tray fire at Browns Ferry in 1975 The review have shown that the first generation Nuclear Power Plant ...

    Hydrogen production from bioethanol using cobalt hydrotalcites 

    Espinal Bustos, Raúl Uziel (Fecha de defensa: 2013-12-20)

    Hydrogen constitutes a promising alternative to manage our energy supply more efficiently. Hydrogen can be stored and used in fuel cells to produce electricity, where it combines with the oxygen present in the air and ...