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Acoustic properties of the South Pole ice for astrophysical neutrino detection

Yasser Abdou UGent (2012)
abstract
Over the last few decades, several dedicated neutrino telescopes have been built to detect high energy astrophysical neutrinos which are predicted from a variety of astrophysical objects. Since the neutrino flux is predicted to be very low (about 1 per km² per year), the IceCube detector could detect only about 1 event per year. A detector with an effective volume of the order of 100 km³ is needed to detect a few events per year. Acoustic and radio methods can, in principle, be used to instrument a large hybrid neutrino telescope with a good sensitivity at a reasonable cost. The South Pole Acoustic Test Setup (SPATS) is the only acoustic activity to study the acoustic detection in ice so far. The acoustic attenuation length of the Antarctic ice is a fundamental quantity to design a future acoustic neutrino detector at the South Pole. The longitudinal waves in the South Pole ice are expected to be attenuated via absorption and scattering, where the attenuation due to scattering depends on the frequency (~f^4). In this work, recent measurements from SPATS was used to investigate the frequency dependence of sound in the South Pole ice. This will allow us to distinguish between the two different attenuation mechanisms (absorption or scattering.) Further analysis related to the sound speed frequency dependence and the ice fabric of the South Pole was done. The in-situ measured attenuation length was used to perform a detailed simulation of neutrino-induced cascades and the resulting acoustic signal in ice. Further simulations were done to investigate the feasibility of a large neutrino telescope in ice.
Please use this url to cite or link to this publication:
author
promoter
UGent
organization
year
type
dissertation (monograph)
subject
keyword
Astrophysical Neutrino Detection, Acoustic Properties, Ice, South Pole
pages
XIV, 146 pages
publisher
Ghent University. Faculty of Sciences
place of publication
Ghent, Belgium
defense location
Gent : Campus INW (gebouw N3, leszaal 2e verd.)
defense date
2012-08-31 16:00
language
English
UGent publication?
yes
classification
D1
copyright statement
I have retained and own the full copyright for this publication
id
2978327
handle
http://hdl.handle.net/1854/LU-2978327
date created
2012-09-04 13:17:04
date last changed
2012-09-19 08:39:41
@phdthesis{2978327,
  abstract     = {Over the last few decades, several dedicated neutrino telescopes have been built to detect high energy astrophysical neutrinos which are predicted from a variety of astrophysical objects. Since the neutrino flux is predicted to be very low (about 1 per km{\texttwosuperior} per year), the IceCube detector could detect only about 1 event per year. A detector with an effective volume of the order of 100 km{\textthreesuperior} is needed to detect a
few events per year. Acoustic and radio methods can, in principle, be used to instrument a large hybrid neutrino telescope with a good sensitivity at a reasonable cost. The South Pole Acoustic Test Setup (SPATS) is the only acoustic activity to study the acoustic detection in ice so far. The acoustic attenuation length of the Antarctic ice is a fundamental quantity to design a future acoustic neutrino detector at the South Pole. The longitudinal waves in the South Pole ice are expected to be attenuated via absorption and scattering, where the attenuation due to scattering depends on the frequency ({\texttildelow}f\^{ }4).
In this work, recent measurements from SPATS was used to investigate the frequency dependence of sound in the South Pole ice. This will allow us to distinguish between the two different attenuation mechanisms (absorption or scattering.) Further analysis related to the sound speed frequency dependence and the ice fabric of the South Pole was done. The in-situ measured attenuation length was used to perform a detailed simulation of neutrino-induced cascades and the resulting acoustic signal in ice. Further simulations were done to investigate the feasibility of a large neutrino telescope in ice.},
  author       = {Abdou, Yasser},
  keyword      = {Astrophysical Neutrino Detection,Acoustic Properties,Ice,South Pole},
  language     = {eng},
  pages        = {XIV, 146},
  publisher    = {Ghent University. Faculty of Sciences},
  school       = {Ghent University},
  title        = {Acoustic properties of the South Pole ice for astrophysical neutrino detection},
  year         = {2012},
}

Chicago
Abdou, Yasser. 2012. “Acoustic Properties of the South Pole Ice for Astrophysical Neutrino Detection”. Ghent, Belgium: Ghent University. Faculty of Sciences.
APA
Abdou, Y. (2012). Acoustic properties of the South Pole ice for astrophysical neutrino detection. Ghent University. Faculty of Sciences, Ghent, Belgium.
Vancouver
1.
Abdou Y. Acoustic properties of the South Pole ice for astrophysical neutrino detection. [Ghent, Belgium]: Ghent University. Faculty of Sciences; 2012.
MLA
Abdou, Yasser. “Acoustic Properties of the South Pole Ice for Astrophysical Neutrino Detection.” 2012 : n. pag. Print.