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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 626-627 (2010) 128-143
AMADEUS - The Acoustic Neutrino Detection Test System of the Deep-Sea ANTARES Neutrino Telescope
J.A. Aguilar, I. Al Samarai1, A. Albert2, M. Anghinolfi, G. Anton, S. Anvar3, M. Ardid, A.C. Assis Jesus, T. Astraatmadja, J.-J. Aubert1, R. Auer, E. Barbarito, B. Baret4, S. Basa5, M. Bazzotti, V. Bertin1, S. Biagi, C. Bigongiari, M. Bou-Cabo, M.C. Bouwhuis, A. Brown1, J. Brunner1, J. Busto1, F. Camarena, A. Capone, G. Carminati, J. Carr1, B. Cassano, E. Castorina, V. Cavasinni, S. Cecchini, A. Ceres, Ph. Charvis6, T. Chiarusi, N. Chon Sen2, M. Circella, R. Coniglione, H. Costantini, N. Cottini, P. Coyle1, C. Curtil1, G. De Bonis, M.P. Decowski, I. Dekeyser7, A. Deschamps6, C. Distefano, C. Donzaud4, D. Dornic1, D. Drouhin2, T. Eberl, U. Emanuele, J.-P. Ernenwein1, S. Escoffier1, F. Fehr, V. Flaminio, U. Fritsch, J.-L. Fuda7, P. Gay8, G. Giacomelli, J.P. G'omez-Gonz'alez, K. Graf, G. Guillard9, G. Halladjian1, G. Hallewell1, H. Van Haren, A.J. Heijboer, E. Heine, Y. Hello6, J.J. Hern'andez-Rey, B. Herold, J. H¨oßl, M. de Jong, N. Kalantar-Nayestanaki, O. Kalekin, A. Kappes, U. Katz, P. Keller1, P. Kooijman, C. Kopper, A. Kouchner4, W. Kretschmer, R. Lahmann, P. Lamare3, G. Lambard1, G. Larosa, H. Laschinsky E, H. Le Provost3, D. Lef'evre7, G. Lelaizant1, G. Lim, D. Lo Presti, H. Loehner, S. Loucatos10, F. Louis3, F. Lucarelli, S. Mangano, M. Marcelin5, A. Margiotta, J.A. Martinez-Mora, A. Mazure5, M. Mongelli, T. Montaruli, M. Morganti, L. Moscoso4, 10, H. Motz, C. Naumann10, M. Neff, R. Ostasch, D. Palioselitis, P. Payre1, J. Petrovic, N. Picot Clémente1, C. Picq10, V. Popa, T. Pradier9, E. Presani, C. Racca2, A. Radu, C. Reed1, G. Riccobene, C. Richardt, M. Rujoiu, M. Ruppi, G.V. Russo, F. Salesa, P. Sapienza, F. Schoeck, J.-P. Schuller10, R. Shanidze, F. Simeone, M. Spurio, J.J.M. Steijger, Th. Stolarczyk10, M. Taiuti, C. Tamburini7, L. Tasca5, S. Toscano, B. Vallage10, V. Van Elewyck4, G. Vannoni10, M. Vecchi, P. Vernin10, G. Wijnker, E. De Wolf, H. Yepes, D. Zaborov, J.D. Zornoza, J. Z'u˜niga, C. Cârloganu8
ANTARES Collaboration(s)

The AMADEUS system described in this article is integrated into the ANTARES neutrino telescope in the Mediterranean Sea and aims at the investigation of techniques for acoustic detection of neutrinos in the deep sea. Installed at water depths between 2000 and 2400m, its acoustic sensors employ piezo-electric elements for the broad-band recording of signals with frequencies ranging up to 125 kHz with typical sensitivities around −145 dB re. 1V/μPa (including preamplifier). Completed in May 2008, AMADEUS consists of six "acoustic clusters", each comprising six acoustic sensors that are arranged at distances of roughly 1m from each other. Three acoustic clusters each are installed along two vertical mechanical structures (so-called lines) of the ANTARES detector at a horizontal distance of 240m. Vertical spacings within a line range from 15m to 125m. Each cluster contains custom-designed electronics boards to amplify and digitise the acoustic data from the sensors. The data transmission to shore is done via optical fibres, using the TCP/IP protocol. An on-shore computer cluster, currently consisting of four dedicated servers, is used to process, filter and store the selected data. The daily volume of recorded data is about 10 - 20 GByte. The system is operating continuously and automatically, requiring only little human intervention. AMADEUS allows for extensive studies of both transient signals and ambient noise in the deep sea as well as signal correlations on several length scales and localisation of acoustic point sources. Thus the system is excellently suited to assess the background conditions that affect the measurement of bipolar pulses expected to originate from neutrino interactions. This in turn allows for feasibility studies of a future large-scale acoustic neutrino telescope in the Mediterranean Sea.
1 :  CPPM - Centre de Physique des Particules de Marseille
2 :  GRPHE - Groupe de Recherche en Physique des Hautes Energies
3 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
4 :  APC - UMR 7164 - AstroParticule et Cosmologie
5 :  LAM - Laboratoire d'Astrophysique de Marseille
6 :  GEOAZUR - Géoazur
7 :  COM - Centre d'océanologie de Marseille
8 :  LPC - Laboratoire de Physique Corpusculaire [Clermont-Ferrand]
9 :  IPHC - Institut Pluridisciplinaire Hubert Curien
10 :  SEDI - Service d'Electronique, des Détecteurs et d'Informatique
Physique/Physique/Instrumentations et Détecteurs

Planète et Univers/Astrophysique/Phénomènes cosmiques de haute energie

Physique/Astrophysique/Phénomènes cosmiques de haute energie

Sciences de l'ingénieur/Optique / photonique
AMADEUS – ANTARES – Neutrino telescope – Acoustic neutrino detection – Thermo-acoustic model
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