Ανίχνευση ακουστικών σημάτων νετρίνων αστροφυσικής προέλευσης με υποβρύχιους ανιχνευτές

Πάσχος, Κωνσταντίνος; Paschos, Konstantinos

dc.contributor.author	Πάσχος, Κωνσταντίνος	el
dc.contributor.author	Paschos, Konstantinos	en
dc.date.accessioned	2024-04-04T08:29:02Z
dc.date.available	2024-04-04T08:29:02Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/59094
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.26790
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ελλάδα	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/gr/	*
dc.subject	Νετρίνο	el
dc.subject	Κοσμική ακτινοβολία	el
dc.subject	Μετασχηματισμός wavelet	el
dc.subject	Θερμοακουστικό μοντέλο	el
dc.subject	Wavelet transform	en
dc.subject	Thermoacoustic model	en
dc.subject	Neutrino	el
dc.subject	Ultra high energy cosmic rays	en
dc.subject	Boosted decision trees	en
dc.subject	Ακουστική ανίχνευση	el
dc.title	Ανίχνευση ακουστικών σημάτων νετρίνων αστροφυσικής προέλευσης με υποβρύχιους ανιχνευτές	el
dc.title	Identification of acoustic neutrino signals of astrophysical origin in underwater detectors	en
heal.type	bachelorThesis
heal.classification	Αστρονομία νετρίνο	el
heal.classification	Σωματιδιακή φυσική	el
heal.classification	Ανάλυση σήματος	el
heal.classification	Neutrino Astronomy	en
heal.classification	Ακουστική	el
heal.classification	Signal analysis	en
heal.classification	Acoustics	en
heal.language	el
heal.language	en
heal.access	campus
heal.recordProvider	ntua	el
heal.publicationDate	2023-10-27
heal.abstract	The neutrino is a very special elementary particle. It gathers the attention of scientists with a broad spectrum of expertise. Particle physicists expect neutrinos to reveal new physics beyond the Standard Model, while astroparticle physicists utilize them as a powerful messenger, sometimes more credible than photons, able to shed light on yet unknown phenomena in our universe. Neutrino telescopes detect Cherenkov radiation emerging from neutrino interactions inside the detector volume in order to reconstruct the particle’s direction and energy up to the scale of PeV. When it comes to the ultra-high-energy region, above 100 PeV, Cherenkov detectors are not a viable solution, as their geometry should exceed both technological and financial limits in order to keep up with the challenges of a very small cosmic neutrino flux and a very broad Cherenkov cone of light. Acoustic neutrino detection is a promising technique that aims to observe ultra-high-energy neutrinos by exploiting the pressure disorder propagated in water due to the rapid and dense energy deposited from the neutrino interactions that take place inside the medium. This thesis develops the thermoacoustic model that describes the sound propagation after the energy deposition and presents a numerical scheme for the calculation of the resulting pressure field, as well as an overall framework for simulating neutrino-induced acoustic pulses. Subsequently, it develops a method for locating them among real sound data acquired at sea, both with and without the use of machine learning techniques. The work concludes with the discussion of implementing such classification techniques into an acoustic detector configuration aimed at working as a neutrino telescope in the ultra-high-energy window.	en
heal.advisorName	Αναγνωστάκης, Μάριος	el
heal.committeeMemberName	Αναγνωστάκης, Μάριος	el
heal.committeeMemberName	Πετρόπουλος, Νικόλαος	el
heal.committeeMemberName	Ρούνη, Παναγιώτα	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Μηχανολόγων Μηχανικών. Τομέας Πυρηνικής Τεχνολογίας	el
heal.academicPublisherID	ntua
heal.numberOfPages	151 σ.	el
heal.fullTextAvailability	false