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Departament de Física i Enginyeria Nuclear (fins octubre de 2015): Recent submissions

Now showing items 6-25 of 42

    Experimental study of feedback-induced dynamics in semiconductor lasers : from symbolic analysis to subwavelength position sensing 

    Aragoneses Aguado, Andrés (Date of defense: 2014-06-18)

    The aim of this thesis is the study of the dynamics induced by optical feedback in semiconductor lasers. This study aims, on the one hand, to improve our knowledge of stocahstic complex systems, and on the other hand, to ...

    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 ...

    Colour and technology in historic decorated glazes and glasses 

    Molina Giralt, Glòria (Date of defense: 2014-05-09)

    Historical decorated glass and glazed ceramics are studied with the object to determine the technology of production and to relate it with the optical properties (colour, shine, opacity). Four different case of study are ...

    Exploiting nonlinearity and noise in optical tweezers and semiconductor lasers : from resonant damping to stochastic logic gates and extreme pulses 

    Perrone, Sandro (Date of defense: 2014-02-07)

    This thesis is focused on the study of stochastic and nonlinear dynamics in optical systems. First, we study experimentally the dynamics of a Brownian nanometer particle in an optical trap subjected to an external forcing. ...

    Development of a simulation tool for MHD flows under nuclear fusion conditions 

    Mas de les Valls Ortiz, Elisabet (Date of defense: 2011-12-01)

    In Nuclear Fusion Technology, MHD flows can be encountered in liquid metal (LM) breeding blankets, the part of a fusion reactor where tritium, one of the fusion fuels, is to be produced. There are several types of LM ...

    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. ...

    Dynamical behavior of delay-coupled semiconductor lasers 

    Martínez González, Cristina (Date of defense: 2009-01-30)

    In this Thesis we have presented the results of a set of experimental investigations of the dynamics of delay-coupled semiconductor lasers. The characterization of these systems includes topics such as the processing of ...

    AxisSPH:devising and validating an axisymmetric smoothed particle hydrodynamics code 

    Relaño Castillo, Antonio (Date of defense: 2012-06-06)

    A two-dimensional axisymmetric implementation of the smoothed particle hydrodynamics (SPH) technique, called for short AxisSPH, has been described in this thesis, along with a number of basic tests and realistic applications. ...

    Caracterización de aerosoles radiactivos en la ciudad de Barcelona 

    González de Perosanz, Miguel Àngel (Date of defense: 2012-03-19)

    This research work has been developed in order to contribute to the knowledge of radioactive aerosol characteristics and their behaviour in the atmosphere. The study was carried out in the city of Barcelona. The Instituto ...

    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 ...

    Study of thermal transitions in polymers by a multifrequency modulated DSC technique 

    Fraga Rivas, Iria (Date of defense: 2010-02-26)

    Differential Scanning Calorimetry (DSC) is one of the most widely used thermal analysis techniques for the study of transitions and relaxation processes in polymers and also in other materials. It measures the heat flow ...

    Multi-dimensional simulations of mixing in classical novae 

    Casanova Bustamante, Jordi (Date of defense: 2011-11-03)

    Classical nova explosions are stellar explosions that take place in close binary systems with an energy release only exceeded by gamma-ray bursts and supernova explosions. Matter from the white dwarf flows through the inner ...

    Dynamics in orientationally disordered solids 

    Martínez García, Julio César (Date of defense: 2011-07-15)

    The key features of dynamics of ultraslowing glass forming systems are their universality in diversity. Its origin is recognized as one of the greatest challenges of condensed matter physics and materials engineering in ...

    Development and applications of a computer code for Monte Carlo simulation of electronphoton showers 

    Sempau Roma, Josep (Date of defense: 1996-02-29)

    Se presenta el trabajo realizado sobre el paquete de Subrrutinas Penélope. Este código permite la simulación MC del transporte de fotones y electrones en la materia con geometrías complejas. Los aspectos considerados ...

    New developments on preparation of cooled and bunched radioactive ion beams at ISOL-Facilities: the ISCOOL project and the rotating wall cooling 

    Podadera Aliseda, Ivan (Date of defense: 2006-07-07)

    Last years have become very productive for the research, construction and development of new facilities devoted to the production of beams with exotic radioisotopes (Radioactive Ion Beams, RIB). These beams are later used ...

    Second Harmonic Generation in Photonic Crystals 

    Trull Silvestre, José Francisco (Date of defense: 1999-12-21)

    Photonic crystals emerged at the end of the last decade as a new frame to control the interaction between radiation and matter. The potential advances that such structures could report in photonics technology has lead to ...

    Estudi de sals foses mitjançant la dinàmica molecular 

    Alcaraz i Sendra, Olga (Date of defense: 2001-01-03)

    El treball Estudi de sals foses mitjançant la dinàmica molecular està integrat dins la línia de recerca Simulació de comportament atòmic en la matèria condensada i amb ell s'han assolit dos grans objectius. El primer ...

    Novel applications of Photonic Force Microscopy 

    Volpe, Giovanni (Date of defense: 2008-10-23)

    The ability of detecting farces and torques at the micro-and nano-scale is fundamental. When this Thesis started, various scanning probe techniques had already been developed to probe the mechanical properties of microsystems. ...