Now showing items 21-35 of 35

    Improvement of early warning monitoring using gamma spectrometry 

    Camp Brunés, Anna (Date of defense: 2017-09-15)

    The present thesis is focused on the improvement of radiological surveillance networks using gamma spectrometry. Tipically they are equipped with gamma dose rate monitors, while they do not have gamma spectrometry monitors. ...

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

    Riego Pérez, Albert (Date of defense: 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 ...

    Automation of the Monte Carlo simulation of medical linear accelerators 

    Rodríguez Castillo, Miguel Lázaro (Date of defense: 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 (Date of defense: 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 ...

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

    Caballero Folch, Roger (Date of defense: 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 ...

    Optimization of field matching in external photon beam radiation therapy 

    Hernández Masgrau, Víctor (Date of defense: 2013-11-07)

    Radiation therapy is one of the main modalities used for treating cancer patients, together with surgery and chemotherapy. Radiotherapy treatments can be carried out with a great variety of devices, but most treatments are ...

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

    García Morales, Héctor (Date of defense: 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 ...

    Neutron-induced fission cross section of 240,242Pu 

    Salvador Castiñeira, Paula (Date of defense: 2014-11-07)

    A recent sensitivity analysis done for the new generation of fast reactors [1] has shown the importance of improved cross section data for several actinides. Among them, the neutron-induced fission cross section of 240,242Pu ...

    IFMIF accelerator facility RAMI analyses in the engineering design phase 

    Bargalló Font, Enric (Date of defense: 2014-05-09)

    The planned International Fusion Materials Irradiation Facility (IFMIF) has the mission to test and qualify materials for future fusion reactors. IFMIF will employ the deuteron-lithium stripping reaction to irradiate the ...

    Hydrogen production from bioethanol using cobalt hydrotalcites 

    Espinal Bustos, Raúl Uziel (Date of defense: 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 ...

    Optimization of alpha emitter's determination in water. Behavior of radionuclides in water treatment plants 

    Montaña Guerra, Montserrat (Date of defense: 2013-07-24)

    La determinació de l’índex alfa total en aigües és d’interès per ser un dels paràmetres inclòs en la legislació nacional e internacional associada a la qualitat de l’aigua per al consum humà. Aquest índex informa de la ...

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

    Grossi, Claudia (Date of defense: 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 ...

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

    Marín Lacoma, Eduardo (Date of defense: 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 ...

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

    Martínez Cid, Manuel (Date of defense: 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. ...

    Monte Carlo and experimental small-field dosimetry applied to spatially fractionated synchrotron radiotherapy techniques 

    Martínez Rovira, Immaculada (Date of defense: 2012-03-12)

    Two innovative radiotherapy (RT) approaches are under development at the ID17 Biomedical Beamline of the European Synchrotron Radiation Facility (ESRF): microbeam radiation therapy (MRT) and minibeam radiation therapy ...