Tesis doctoral de Manuel Bou Cabo
Synthesis. in this thesis different aspects of acoustics present in an underwater neutrino telescopes are treated, mainly in two topics: the acoustic positioning system used to monitor the positions of the optical modules placed along the detector, and the systems for acoustic neutrino detection technique, which is currently under study. All studies are framed in two european partnerships for the design, construction and operation of undersea neutrino telescope, antares (under operation) and km3net (design phase). objectives. the objectives of this study can be summarized in the following aspects: – research and analysis of acoustic positioning system of antares. development of software for the automation of data processing system and incorporating the results into the database of the experiment. analysis of data from the system in order to validate its correct operation. – design and development of the acoustic positioning system for the km3net telescope, which will be about 20 times larger than antares. – studies to evaluate acoustic parametric generation for the development of a compact calibrator capable of generating signals useful to calibrate neutrino acoustic detection systems. elements of the methodology to emphasize. it should be noted here that the work has been developed within the framework of two international collaborations: antares and km3net, with the support of european and national funds. Due to the context and nature of activities it has been needed training in different fields: astroparticle and neutrino telescopes, but also in other areas such as underwater acoustics. It has also been needed to develop abilities and skills in various areas: instrumentation, applications, data analysis, etc. More specifically, we have worked on software for the development and analysis at antares and in underwater acoustic technologies for the development of km3net acoustic positioning system with the requirements imposed by the infrastructure: hostile environment (in the sea about 3000m depth under high pressure), high precision required (10 cm over distances of the order of kilometers), low power consumption, communication capabilities and configuration, etc. For the development of the compact calibrator to reproduce neutrino like signals, pioneering studies of parametric generation in cases with cylindrical symmetry and transient signals have been achieved and applied in order to develop a device that can produce a highly directive transient bipolar signal. results achieved. the results achieved in the realization of this thesis can be summarized in response to the three issues under discussion, acoustic positioning km3net, antares project collaboration and design and evaluation of techniques for acoustic detection of neutrinos: – within the collaboration in the antares neutrino telescope, numerous studies have been conducted to verify the stability and accuracy of the various components of the positioning system and of the results. Also an interface (using c++/oracle in linux environment) has been done that allows the incorporation of data from the acoustic positioning system in the database and thus provide these for the subsequent reconstruction of particles detected. – design and development of acoustic positioning system for km3net neutrino telescope. As part of this project a system of acoustic transceivers for a new positioning system has been developed and will be tested and validated during the summer of 2011 in the nemo- km3net prototype at 3500 m deep sea near capo passero (sicily). – in relation to the development of an acoustic calibrator that mimics the pulse of the neutrino interaction, studies for the evaluation of parametric sound generation technique for this purpose has been done, obtaining successful and promising results for the possible construction of a compact calibrator device, whose prototype is being developed. these activities and scientific and technological results have been useful for the development in the field of underwater neutrino telescopes, and as such, they have been published in international scientific journals.
Datos académicos de la tesis doctoral «Acoustics for underwater neutrino telescopes«
- Título de la tesis: Acoustics for underwater neutrino telescopes
- Autor: Manuel Bou Cabo
- Universidad: Politécnica de Valencia
- Fecha de lectura de la tesis: 08/04/2011
Dirección y tribunal
- Director de la tesis
- Miguel Ardid Ramírez
- Tribunal
- Presidente del tribunal: Juan José Hernández rey
- vincent Bertin (vocal)
- Juan Zuñiga román (vocal)
- ricard Tom?s bayo (vocal)