Optical System of Neutrino Telescope
Date Issued
2006
Date
2006
Author(s)
Kang, Teng-Chieh
DOI
en-US
Abstract
The neutrino telescope (NuTel) is designed to detect the tau neutrino. If it is observed, the oscillation,muon neutrino to tau neutrino is proved. Also detecting neutrinos can be used to analyse the origin of UHECR (ultra high energy cosmic ray).
The optical system is used to watch the Cherenkov light of the air shower particles which arose from decay of tau neutrino in the earth. Then the signal will be transferred to the rear electronic system for analysis.
Primarily we used optical simulation software to design and optimize. Fresnel lens system design was the first try and a commercial Fresnel lens was bought to analyse its model to use at the same time. The second type of design is Schmidt mirror system and it matched the requirement of NuTel. Therefore it is adopted as the optical system of NuTel. Also some Monte Carlo simulations of transmittance were done to evaluate the loss of light. Finally, we constructed the telescope and performed measurments for the lens, the mirror, and the telescope. The imaging position of the aspherical lens was measured. The radius of curvature of the mirror was measured. The spot size of the whole system was measured. All the measrement results
satisfied the design goals.
Subjects
微中子
望遠鏡
neutrino
telescope
Type
thesis
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