Abstract
The scientific prospects of detecting neutrinos with an energy close or even higher than the GKZ cut-off energy has been discussed extensively in literature. It is clear that due to their expected low flux,the detection of these ultra-high energy neutrinos (Eν > 1018 eV) requires a telescope larger than 100km3. Acoustic detection may provide a way to observe these ultra-high energy cosmic neutrinos, as sound that they induce in the deep sea when neutrinos lose their energy travels undisturbed for many kilometers. To realize a large scale acoustic neutrino telescope, dedicated technology must be developed that allows for a deep sea sensor network. Fiber optic hydrophone technology provides a promising means to establish a large scale sensor network with the proper sensitivity to detect the small signals from the neutrino interactions.
Highlights
The measurements of neutrinos with energies higher than what has been detected so far may provide input in one of the long standing issues in astrophysics, which is the mystery of cosmic rays and the mechanism of their acceleration to the highest energies measured [2]
To detect the neutrinos that originate from the GKZ cut-off, a neutrino telescope is required with a detection volume of at least 100km3
In this paper we motivate the use of optical sensor networks as a building block of an acoustic neutrino telescope and provide an overview of the research and development of the fiber hydrophone technology at TNO
Summary
The measurements of neutrinos with energies higher than what has been detected so far may provide input in one of the long standing issues in astrophysics, which is the mystery of cosmic rays and the mechanism of their acceleration to the highest energies measured [2]. To detect the neutrinos that originate from the GKZ cut-off, a neutrino telescope is required with a detection volume of at least 100km. To detect the neutrinos that originate from the GKZ cut-off, a neutrino telescope is required with a detection volume of at least 100km3 To establish such as large detection volume one could employ the technique of acoustic detection of neutrinos [3,4,5].
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