Nanobeacon: A low cost time calibration instrument for 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 one a set (31) of small area photomultipliers. The main goal of the telescope is to observe cosmic neutrino...

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Bibliographic Details
Main Author: Calvo, David
Format: Conference Proceeding
Language:English
Subjects:
CALIBRATION
CHARGED PARTICLES
CHERENKOV COUNTERS
COOLING TOWERS
COSMIC NEUTRINOS
DESIGN
GLASS
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
MEDITERRANEAN SEA
NEUTRINO DETECTION
Photomultiplier tubes
PHOTOMULTIPLIERS
SCINTILLATION COUNTERS
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 one a set (31) of small area photomultipliers. The main goal 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. Due to the high volume to be covered by KM3NeT, a cost reduction of the different systems is a priority. To this end a very low price calibration device, the so called Nanobeacon, has been designed and developed. At present one of such devices has already been integrated successfully at the KM3NeT telescope and eight of them in the Nemo Tower Phase II. In this article the main properties and operation of this device are described.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4902791