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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-25 0:00 |
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Conference: Bucharest University Faculty of Physics 2011 Meeting
Section: Atomic and Molecular Physics; Astrophysics
Title:
Considerations on a large scale neutrino detector in a salt dome
Authors:
Alina Badescu(1), A.Saftoiu(2), O.Fratu(1), I. Brancus(2), B. Mitrica(2), O. Sima(3), S. Halunga(1), G. Toma(2), I. Lazanu(3)
Affiliation:
(1)POLITEHNICA University of Bucharest
(2)National Institute for Nuclear Physics and Engineering
(3)University of Bucharest, faculty of Physics, P.O.BOX MG-11, Bucharest, Romania
E-mail
alinabadescu@radio.pub.ro
Keywords:
Electromagnetic shower, neutrino detection, salt
Abstract:
We analyse a neutrino large-scale radio Cherenkov observatory in a Romanian salt mine. The radio signal is considered to be a parameterization of the coherent radio pulses from showers given in Alvarez-Muniz et al. (2006). At propagation, the waves will suffer absorption and reflexions at separation borders between dielectrics. The measured signal depends on the characteristics of the antenna and electronics, that are briefly characterized. It was taken into account how the pulse couples to a realistic receiver.We made a threshold analysis for such a detector considering the signal-to-noise ratio. The imposed SNR will determine the minimum (threshold) energy that can be detected. This energy is calculated in some particular situations. Detection of neutrino induced radio electromagnetic radiation becomes feasible only if the geometry of the detector guarantees separation between radio stations smaller than 80m. Considering the value imposed on the SNR we concluded that only particles with energies higher than 100 PeV can be detected in this configuration. We have also presented the effective volume for events with energies of primaries E0 and incident direction θ. This is defined by Frichter et al. (1996) as the collection of potential shower positions that satisfies a signal to noise ratio greater than a given value. In the end we calculated a single receiver effective volume.
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