Deep sea tests of a prototype of the KM3NeT digital optical module

The first prototype of a photo-detection unit of the future KM3NeT neutrino telescope has been deployed in the deepwaters of the Mediterranean Sea. This digital optical module has a novel design with a very large photocathode area segmented by the use of 31 three inch photomultiplier tubes. It has been integrated in the ANTARES detector for in-situ testing and validation. This paper reports on the first months of data taking and rate measurements. The analysis results highlight the capabilities of the new module design in terms of background suppression and signal recognition. The directionality of the optical module enables the recognition of multiple Cherenkov photons from the same (40)Kdecay and the localisation of bioluminescent activity in the neighbourhood. The single unit can cleanly identify atmospheric muons and provide sensitivity to the muon arrival directions

Deep sea tests of a prototype of the KM3NeT digital optical module

250nonenoneAdrian-Martinez S; Ageron M; Aharonian F; Aiello S; Albert A; Ameli F; Anassontzis EG; Anghinolfi M; Anton G; Anvar S; Ardid M; de Asmundis R; Balasi K; Band H; Barbarino G; Barbarito E; Barbato F; Baret B; Baron S; Belias A; Berbee E; van den Berg AM; Berkien A; Bertin V; Beurthey S; van Beveren V; Beverini N; Biagi S; Bianucci S; Billault M; Birbas A; Rookhuizen HB; Bormuth R; Bouche V; Bouhadef B; Bourlis G; Bouwhuis M; Bozza C; Bruijn R; Brunner J; Cacopardo G; Caillat L; Calamai M; Calvo D; Capone A; Caramete L; Caruso F; Cecchini S; Ceres A; Cereseto R; Champion C; Chateau F; Chiarusi T; Christopoulou B; Circella M; Classen L; Cocimano R; Colonges S; Coniglione R; Cosquer A; Costa M; Coyle P; Creusot A; Curtil C; Cuttone G; D'Amato C; D'Amico A; De Bonis G; De Rosa G; Deniskina N; Destelle JJ; Distefano C; Donzaud C; Dornic D; Dorosti-Hasankiadeh Q; Drakopoulou E; Drouhin D; Drury L; Durand D; Eberl T; Eleftheriadis C; Elsaesser D; Enzenhofer A; Fermani P; Fusco LA; Gajana D; Gal T; Galata S; Gallo F; Garufi F; Gebyehu M; Giordano V; Gizani N; Ruiz RG; Graf K; Grasso R; Grella G; Grmek A; Habel R; van Haren H; Heid T; Heijboer A; Heine E; Henry S; Hernandez-Rey JJ; Herold B; Hevinga MA; van der Hoek M; Hofestadt J; Hogenbirk J; Hugon C; Hoessl J; Imbesi M; James C; Jansweijer P; Jochum J; de Jong M; Kadler M; Kalekin O; Kappes A; Kappos E; Katz U; Kavatsyuk O; Keller P; Kieft G; Koffeman E; Kok H; Kooijman P; Koopstra J; Korporaal A; Kouchner A; Koutsoukos S; Kreykenbohm I; Kulikovskiy V; Lahmann R; Lamare P; Larosa G; Lattuada D; Le Provost H; Leisos A; Lenis D; Leonora E; Clark ML; Liolios A; Alvarez CDL; Lohner H; Lo Presti D; Louis F; Maccioni E; Mannheim K; Manolopoulos K; Margiotta A; Maris O; Markou C; Martinez-Mora JA; Martini A; Masullo R; Michael T; Migliozzi P; Migneco E; Miraglia A; Mollo C; Mongelli M; Morganti M; Mos S; Moudden Y; Musico P; Musumeci M; Nicolaou C; Nicolau CA; Orlando A; Orzelli A; Papageorgiou K; Papaikonomou A; Papaleo R; Pavalas GE; Peek H; Pellegrino C; Pellegriti MG; Perrina C; Petridou C; Piattelli P; Pikounis K; Popa V; Pradier T; Priede M; Puhlhofer G; Pulvirenti S; Racca C; Raffaelli F; Randazzo N; Rapidis PA; Razis P; Real D; Resvanis L; Reubelt J; Riccobene G; Rovelli A; Royon J; Saldana M; Samtleben DFE; Sanguineti M; Santangelo A; Sapienza P; Savvidis I; Schmelling J; Schnabel J; Sedita M; Seitz T; Sgura I; Simeone F; Siotis I; Sipala V; Solazzo M; Spitaleri A; Spurio M; Stavropoulos G; Steijger J; Stolarczyk T; Stransky D; Taiuti M; Terreni G; Tezier D; Theraube S; Thompson LF; Timmer P; Trapierakis HI; Trasatti L; Trovato A; Tselengidou M; Tsirigotis A; Tzamarias S; Tzamariudaki E; Vallage B; Van Elewyck V; Vermeulen J; Vernin P; Viola S; Vivolo D; Werneke P; Wiggers L; Wilms J; de Wolf E; van Wooning RHL; Yatkin K; Zachariadou K; Zonca E; Zornoza JD; Zuniga J; Zwart AAdrian-Martinez, S; Ageron, M; Aharonian, F; Aiello, S; Albert, A; Ameli, F; Anassontzis, Eg; Anghinolfi, M; Anton, G; Anvar, S; Ardid, M; de Asmundis, R; Balasi, K; Band, H; Barbarino, G; Barbarito, E; Barbato, F; Baret, B; Baron, S; Belias, A; Berbee, E; van den Berg, Am; Berkien, A; Bertin, V; Beurthey, S; van Beveren, V; Beverini, N; Biagi, S; Bianucci, S; Billault, M; Birbas, A; Rookhuizen, Hb; Bormuth, R; Bouche, V; Bouhadef, B; Bourlis, G; Bouwhuis, M; Bozza, C; Bruijn, R; Brunner, J; Cacopardo, G; Caillat, L; Calamai, M; Calvo, D; Capone, A; Caramete, L; Caruso, F; Cecchini, S; Ceres, A; Cereseto, R; Champion, C; Chateau, F; Chiarusi, T; Christopoulou, B; Circella, M; Classen, L; Cocimano, R; Colonges, S; Coniglione, R; Cosquer, A; Costa, M; Coyle, P; Creusot, A; Curtil, C; Cuttone, G; D'Amato, C; D'Amico, A; De Bonis, G; De Rosa, G; Deniskina, N; Destelle, Jj; Distefano, C; Donzaud, C; Dornic, D; Dorosti-Hasankiadeh, Q; Drakopoulou, E; Drouhin, D; Drury, L; Durand, D; Eberl, T; Eleftheriadis, C; Elsaesser, D; Enzenhofer, A; Fermani, P; Fusco, La; Gajana, D; Gal, T; Galata, S; Gallo, F; Garufi, F; Gebyehu, M; Giordano, V; Gizani, N; Ruiz, Rg; Graf, K; Grasso, R; Grella, G; Grmek, A; Habel, R; van Haren, H; Heid, T; Heijboer, A; Heine, E; Henry, S; Hernandez-Rey, Jj; Herold, B; Hevinga, Ma; van der Hoek, M; Hofestadt, J; Hogenbirk, J; Hugon, C; Hoessl, J; Imbesi, M; James, C; Jansweijer, P; Jochum, J; de Jong, M; Kadler, M; Kalekin, O; Kappes, A; Kappos, E; Katz, U; Kavatsyuk, O; Keller, P; Kieft, G; Koffeman, E; Kok, H; Kooijman, P; Koopstra, J; Korporaal, A; Kouchner, A; Koutsoukos, S; Kreykenbohm, I; Kulikovskiy, V; Lahmann, R; Lamare, P; Larosa, G; Lattuada, D; Le Provost, H; Leisos, A; Lenis, D; Leonora, E; Clark, Ml; Liolios, A; Alvarez, Cdl; Lohner, H; Lo Presti, D; Louis, F; Maccioni, E; Mannheim, K; Manolopoulos, K; Margiotta, A; Maris, O; Markou, C; Martinez-Mora, Ja; Martini, A; Masullo, R; Michael, T; Migliozzi, P; Migneco, E; Miraglia, A; Mollo, C; Mongelli, M; Morganti, M; Mos, S; Moudden, Y; Musico, P; Musumeci, M; Nicolaou, C; Nicolau, Ca; Orlando, A; Orzelli, A; Papageorgiou, K; Papaikonomou, A; Papaleo, R; Pavalas, Ge; Peek, H; Pellegrino, C; Pellegriti, Mg; Perrina, C; Petridou, C; Piattelli, P; Pikounis, K; Popa, V; Pradier, T; Priede, M; Puhlhofer, G; Pulvirenti, S; Racca, C; Raffaelli, F; Randazzo, N; Rapidis, Pa; Razis, P; Real, D; Resvanis, L; Reubelt, J; Riccobene, G; Rovelli, A; Royon, J; Saldana, M; Samtleben, Dfe; Sanguineti, M; Santangelo, A; Sapienza, P; Savvidis, I; Schmelling, J; Schnabel, J; Sedita, M; Seitz, T; Sgura, I; Simeone, F; Siotis, I; Sipala, V; Solazzo, M; Spitaleri, A; Spurio, M; Stavropoulos, G; Steijger, J; Stolarczyk, T; Stransky, D; Taiuti, M; Terreni, G; Tezier, D; Theraube, S; Thompson, Lf; Timmer, P; Trapierakis, Hi; Trasatti, L; Trovato, A; Tselengidou, M; Tsirigotis, A; Tzamarias, S; Tzamariudaki, E; Vallage, B; Van Elewyck, V; Vermeulen, J; Vernin, P; Viola, S; Vivolo, D; Werneke, P; Wiggers, L; Wilms, J; de Wolf, E; van Wooning, Rhl; Yatkin, K; Zachariadou, K; Zonca, E; Zornoza, Jd; Zuniga, J; Zwart,

Deep sea tests of a prototype of the KM3NeT digital optical module: KM3NeT Collaboration

The first prototype of a photo-detection unit of the future KM3NeT neutrino telescope has been deployed in the deep waters of the Mediterranean Sea. This digital optical module has a novel design with a very large photocathode area segmented by the use of 31 three inch photomultiplier tubes. It has been integrated in the ANTARES detector for in-situ testing and validation. This paper reports on the first months of data taking and rate measurements. The analysis results highlight the capabilities of the new module design in terms of background suppression and signal recognition. The directionality of the optical module enables the recognition of multiple Cherenkov photons from the same40 K decay and the localisation of bioluminescent activity in the neighbourhood. The single unit can cleanly identify atmospheric muons and provide sensitivity to the muon arrival directions