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The ANTARES optical beacon system
Vise andre og tillknytning
2007 (engelsk)Inngår i: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 578, nr 3, s. 498-509Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

ANTARES is a neutrino telescope being deployed in the Mediterranean Sea. It consists of a three-dimensional array of photomultiplier tubes that can detect the Cherenkov light induced by charged particles produced in the interactions of neutrinos with the surrounding medium. High angular resolution can be achieved, in particular, when a muon is produced, provided that the Cherenkov photons are detected with sufficient timing precision. Considerations of the intrinsic time uncertainties stemming from the transit time spread in the photomultiplier tubes and the mechanism of transmission of light in sea water lead to the conclusion that a relative time accuracy of the order of 0.5 ns is desirable. Accordingly, different time calibration systems have been developed for the ANTARES telescope. In this article, a system based on Optical Beacons, a set of external and well-controlled pulsed light sources located throughout the detector, is described. This calibration system takes into account the optical properties of sea water, which is used as the detection volume of the ANTARES telescope. The design, tests, construction and first results of the two types of beacons, LED and laser-based, are presented. (C) 2007 Elsevier B.V. All rights reserved.

sted, utgiver, år, opplag, sider
Elsevier, 2007. Vol. 578, nr 3, s. 498-509
Emneord [en]
neutrino telescope, time calibration, optical beacon
HSV kategori
Forskningsprogram
Fysik, Astropartikelfysik
Identifikatorer
URN: urn:nbn:se:lnu:diva-30275DOI: 10.1016/j.nima.2007.05.325ISI: 000249158300006OAI: oai:DiVA.org:lnu-30275DiVA, id: diva2:706994
Tilgjengelig fra: 2014-03-24 Laget: 2013-11-08 Sist oppdatert: 2017-12-05bibliografisk kontrollert

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Becherini, Yvonne

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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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