Proposal of a new generation of Laser Beacon for time calibration in the KM3NeT neutrino telescope

The KM3NeT collaboration aims at the construction of a multi-km3 high-energy neutrino telescope in the Mediterranean Sea consisting of a matrix of pressure resistant glass spheres holding each a set (31) of small area photomultipliers. The main motivation of the telescope is to observe cosmic neutri...

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Bibliographic Details
Main Author: Real, Diego
Format: Conference Proceeding
Language:English
Subjects:
CALIBRATION
CHARGED PARTICLES
CHERENKOV COUNTERS
COSMIC NEUTRINOS
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
LASERS
MEDITERRANEAN SEA
MULTIPARTICLE SPECTROMETERS
NEUTRINO DETECTION
Neutrinos
PARTICLE IDENTIFICATION
Photomultiplier tubes
PHOTOMULTIPLIERS
Seawater
SPHERES
TELESCOPE COUNTERS
VISIBLE RADIATION
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Summary:The KM3NeT collaboration aims at the construction of a multi-km3 high-energy neutrino telescope in the Mediterranean Sea consisting of a matrix of pressure resistant glass spheres holding each a set (31) of small area photomultipliers. The main motivation of the telescope is to observe cosmic neutrinos through the Cherenkov light induced in sea water by charged particles produced in neutrino interactions with the surrounding medium. A relative time calibration between photomultipliers of the order of 1 ns is required to achieve an optimal performance. To this end, several time calibration subsystems have been developed. In this article, the proposal of a last generation Laser Beacon, to be used in KM3NeT and developed to measure and monitor the relative time offsets between photomultipliers, is presented.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4902789