Background light in potential sites for the ANTARES undersea neutrino telescope

6533b7d8fe1ef96bd1269a15

RESEARCH PRODUCT

Background light in potential sites for the ANTARES undersea neutrino telescope

P. Amram S. Anvar E. Aslanides J. J. Aubert R. Azoulay S. Basa Y. Benhammou F. Bernard V. Bertin M. Billault P. E. Blanc F. Blanc R. W. Bland F. Blondeau N. Bottu J. Boulesteix B. Brooks J. Brunner A. Calzas C. Carloganu E. Carmona J. Carr P. H. Carton S. Cartwright R. Cases F. Cassol C. Compere S. Cooper G. Coustillier N. Botton P. Deck F. E. Desages J. J. Destelle G. Dispau J. F. Drogou F. Drouhin P. Y. Duval F. Feinstein D. Festy J. Fopma J. L. Fuda P. Goret L. Gosset J. F. Gournay J. J. Hernaandez G. Herrouin F. Hubaut J. R. Hubbard D. Huss M. Jaquet N. Jelley E. Kajfasz M. Karolak A. Kouchner V. Kudryavtsev D. Lachartre H. Lafoux P. Lamare J. C. Languillat D. Laugier J. P. Laugier Y. Le Guen H. Le Provost A. L. Suu L. Lemoine P. L. Liotard S. Loucatos P. Magnier M. Macelin L. Martin A. Massol B. Mazeau A. Mazure F. Mazeas J. Mcmillan C. Millot P. Mols F. Montanet J. P. Morel L. Moscoso S. Navas C. Olivetto N. Palanque-delabrouille A. Pallares P. Payre P. Perrin A. Pohl J. Poinsignon R. Potheau Y. Queinec C. Racca M. Raymond J. F. Rolin Y. Sacquin J. P. Schuller W. Schuster N. Spooner T. Stolarczyk A. Tabary M. Talby C. Tao Y. Tayalati L. F. Thompson R. Triay T. Tzvetanov P. Valdy P. Vernin E. Vigeolas D. Vignaud D. Vilanova D. Wark A. Zghiche J. Zuniga Antares Collaboration

subject

Photomultiplier Trigger rate Continuum (design consultancy)Neutrino telescope FOS: Physical sciences Astrophysics Astrophysics 01 natural sciences Coincidence High Energy Physics - Experiment [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]High Energy Physics - Experiment (hep-ex)0103 physical sciences Metre 14. Life underwater 010306 general physics Physics [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]010308 nuclear & particles physics Astrophysics (astro-ph)Astronomy Astronomy and Astrophysics Constant rate 13. Climate action Física nuclear Background light

description

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.

year	journal	country	edition	language
2000-05-01	Astroparticle Physics

https://doi.org/10.1016/s0927-6505(99)00118-8