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Background light in potential sites for the ANTARES undersea neutrino telescope (2005) |
- Amram, P.,
- Anvar, S.,
- Aslanides, E.,
- Aubert, J.J.,
- Azoulay, R.,
- Basa, S.,
- Benhammou, Y.,
- Bernard, F.,
- Bertin, V.,
- Billault, M.,
- Blanc, P.E.,
- Blanc, F.,
- Bland, R W.,
- Blondeau, F.,
- Bottu, N.,
- Boulesteix, J.,
- Brooks, B.,
- Brunner, J.,
- Calzas, A.,
- Carloganu, C.,
- Carmona, F E.,
- Carr, J.,
- Carton, P H.,
- Cartwright, S.,
- Cases, R.,
- Cassol, F.,
- Compere, C.,
- Cooper, S.,
- Coustillier, G.,
- De Botton, N.,
- Deck, P.,
- Desages, F E.,
- Destelle, J.J.,
- Dispau, G.,
- Drogou, J F.,
- Drouhin, F.,
- Duval, P.Y.,
- Feinstein, F.,
- Festy, D.,
- Fopma, J.,
- Fuda, J L.,
- Goret, P.,
- Gosset, L.,
- Gournay, J F.,
- Hernandez, J J.,
- Herrouin, G.,
- Hubaut, F.,
- Hubbard, J R.,
- Huss, D.,
- Jaquet, M.,
- Jelley, N.,
- Kajfasz, E.,
- Karolak, M.,
- Kouchner, A.,
- Kudryavtsev, V.,
- Lachartre, D.,
- Lafoux, H.,
- Lamare, P.,
- Languillat, J C.,
- Laugier, D.,
- Laugier, J P.,
- Le Guen, Y.,
- Le Provost, H.,
- Le Van Suu, A.,
- Lemoine, L.,
- Liotard, P.L.,
- Loucatos, S.,
- Magnier, P.,
- Marcelin, M.,
- Martin, L.,
- Massol, A.,
- Mazeau, B.,
- Mazure, A.,
- Mazeas, F.,
- McMillan, J.,
- Millot, C.,
- Mols, P.,
- Montanet, F.,
- Morel, J P.,
- Moscoso, L.,
- Navas, S.,
- Olivetto, C.,
- Palanque-Delabrouille, N.,
- Pallares, A.,
- Payre, P.,
- Perrin, P.,
- Pohl, A.,
- Poinsignon, J.,
- Potheau, R.,
- Queinec, Y.,
- Racca, C.,
- Raymond, M.,
- Rolin, J F.,
- Sacquin, Y.,
- Schuller, J P.,
- Schuster, W.,
- Spooner, N.,
- Stolarczyk, T.,
- Tabary, A.,
- Talby, M.,
- Tao, C.,
- Tayalati, Y.,
- Thompson, L F.,
- Triay, R.,
- Tzvetanov, T.,
- Valdy, P.,
- Vernin, P.,
- Vigeolas, E.,
- Vignaud, D.,
- Vilanova, D.,
- Wark, D.,
- Zghiche, A.,
- Zuniga, J.
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Abstract |
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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. |
Publication details |
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