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Background light in potential sites for the ANTARES undersea neutrino telescope

P. Amram S. Anvar E. Aslanides 1 J.J. Aubert 1 R. Azoulay S. Basa 1 Y. Benhammou F. Bernard V. Bertin 1 M. Billault 1 P.E. Blanc 1 F. Blanc R W. Bland F. Blondeau N. Bottu J. Boulesteix B. Brooks J. Brunner 1 A. Calzas 1 C. Carloganu 1 F E. Carmona J. Carr 1 P H. Carton S. Cartwright R. Cases F. Cassol 1 C. Compere S. Cooper G. Coustillier N. de Botton 1 P. Deck F E. Desages J.J. Destelle 1 G. Dispau J F. Drogou F. Drouhin P.Y. Duval 1 F. Feinstein D. Festy J. Fopma J L. Fuda P. Goret L. Gosset J F. Gournay J J. Hernandez G. Herrouin F. Hubaut 1 J R. Hubbard D. Huss 2 M. Jaquet 1 N. Jelley E. Kajfasz 1 M. Karolak A. Kouchner V. Kudryavtsev D. Lachartre H. Lafoux P. Lamare J C. Languillat D. Laugier 1 J P. Laugier Y. Le Guen H. Le Provost A. Le van Suu 1 L. Lemoine P.L. Liotard 1 S. Loucatos P. Magnier M. Marcelin L. Martin 1 A. Massol B. Mazeau A. Mazure F. Mazeas J. Mcmillan C. Millot P. Mols F. Montanet 1 Jean-Pierre Morel L. Moscoso S. Navas 1 C. Olivetto 1 N. Palanque-Delabrouille A. Pallares P. Payre 1 P. Perrin A. Pohl 1 J. Poinsignon R. Potheau 1 Y. Queinec C. Racca 2 M. Raymond 1 J F. Rolin Y. Sacquin J P. Schuller W. Schuster N. Spooner T. Stolarczyk A. Tabary M. Talby 1 C. Tao 1 Y. Tayalati L F. Thompson R. Triay T. Tzvetanov P. Valdy P. Vernin E. Vigeolas 1 D. Vignaud D. Vilanova D. Wark A. Zghiche 2 J. Zuniga
1 CPPM - Centre de Physique des Particules de Marseille
2 IReS - Institut de Recherches Subatomiques
Abstract : The ANTARES collaboration has performed a series of {\em in situ} measurements to study the background light for a planned undersea neutrino telescope. Such background can be caused by $^{40}$K decays or by biological activity. We report on measurements at two sites in the Mediterranean Sea at depths of 2400~m and 2700~m, respectively. Three photomultiplier tubes were used to measure single counting rates and coincidence rates for pairs of tubes at various distances. The background rate is seen to consist of three components: a constant rate due to $^{40}$K decays, a continuum rate that varies on a time scale of several hours simultaneously over distances up to at least 40~m, and random bursts a few seconds long that are only correlated in time over distances of the order of a meter. A trigger requiring coincidences between nearby photomultiplier tubes should reduce the trigger rate for a neutrino telescope to a manageable level with only a small loss in efficiency.
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http://hal.in2p3.fr/in2p3-00009721
Contributor : Magali Damoiseaux <>
Submitted on : Tuesday, April 11, 2000 - 11:13:27 AM
Last modification on : Monday, March 29, 2021 - 3:22:08 PM

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P. Amram, S. Anvar, E. Aslanides, J.J. Aubert, R. Azoulay, et al.. Background light in potential sites for the ANTARES undersea neutrino telescope. Astroparticle Physics, Elsevier, 2000, 13, pp.127-136. ⟨in2p3-00009721⟩

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