Performances and main results of the KM3NeT prototypes
International audience The KM3NeT collaboration aims to build a km3-scale neutrino telescope in the Mediterranean Sea. The first phase of construction comprises the deep-sea and onshore infrastructures at the KM3NeT-It (100 km offshore Capo Passero, Italy) and KM3NeT-Fr (40 km offshore Toulon, Franc...
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ftunivnantes:oai:HAL:hal-03626580v1 2023-05-15T17:54:01+02:00 Performances and main results of the KM3NeT prototypes Biagi, Simone Bormuth, Robert Creusot, Alexandre AstroParticule et Cosmologie (APC (UMR_7164)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) The Hague, Netherlands 2015-07-30 https://hal.science/hal-03626580 https://doi.org/10.22323/1.236.1164 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.22323/1.236.1164 hal-03626580 https://hal.science/hal-03626580 doi:10.22323/1.236.1164 INSPIRE: 1483449 PoS 34th International Cosmic Ray Conference https://hal.science/hal-03626580 34th International Cosmic Ray Conference, Jul 2015, The Hague, Netherlands. pp.1164, ⟨10.22323/1.236.1164⟩ neutrino: detector muon: atmosphere energy: high energy: low K: decay numerical calculations: Monte Carlo optical KM3NeT photomultiplier performance ANTARES site cosmic radiation calibration resolution mechanics [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/conferenceObject Conference papers 2015 ftunivnantes https://doi.org/10.22323/1.236.1164 2023-03-08T01:54:12Z International audience The KM3NeT collaboration aims to build a km3-scale neutrino telescope in the Mediterranean Sea. The first phase of construction comprises the deep-sea and onshore infrastructures at the KM3NeT-It (100 km offshore Capo Passero, Italy) and KM3NeT-Fr (40 km offshore Toulon, France) sites and the installation of 31+7 detection units. For the next step (KM3NeT 2.0) completion of two detectors are planned as extension of the detectors realized during the first phase of construction: ARCA for high energies (E > TeV) in Italy and ORCA for low energies (GeV range) in France. A prototype digital optical module made of 31” PMTs was deployed in April 2013 inside the ANTARES neutrino telescope. This prototype, attached to an ANTARES string, was operated for one year and a half. It validated the multi-PMT technology and demonstrated the capability to identify muons with a single optical module searching for local time coincidences between PMTs inside the optical module. A prototype detection unit made of three optical modules was installed at the KM3NeT-It site. It was deployed in May 2014; it is active and taking data. More than 700 hours of data have been recorded and analyzed. The experience achieved with this prototype detection unit validates the submarine deployment procedures, the mechanics and the electronic of the apparatus, the data taking and analysis procedures. Through the study of 40K decay in sea water and dedicated data taking periods with flashing LED nanobeacons, it is possible to calibrate in time the detector with nanosecond stability. A dedicated algorithm has been developed to select atmospheric muons and reconstruct their zenith angle with a resolution of about 8 degrees. An excellent agreement is found when comparing the detected signal from muons with Monte Carlo simulations. Conference Object Orca Université de Nantes: HAL-UNIV-NANTES Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015) 1164 |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
neutrino: detector muon: atmosphere energy: high energy: low K: decay numerical calculations: Monte Carlo optical KM3NeT photomultiplier performance ANTARES site cosmic radiation calibration resolution mechanics [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
spellingShingle |
neutrino: detector muon: atmosphere energy: high energy: low K: decay numerical calculations: Monte Carlo optical KM3NeT photomultiplier performance ANTARES site cosmic radiation calibration resolution mechanics [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Biagi, Simone Bormuth, Robert Creusot, Alexandre Performances and main results of the KM3NeT prototypes |
topic_facet |
neutrino: detector muon: atmosphere energy: high energy: low K: decay numerical calculations: Monte Carlo optical KM3NeT photomultiplier performance ANTARES site cosmic radiation calibration resolution mechanics [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience The KM3NeT collaboration aims to build a km3-scale neutrino telescope in the Mediterranean Sea. The first phase of construction comprises the deep-sea and onshore infrastructures at the KM3NeT-It (100 km offshore Capo Passero, Italy) and KM3NeT-Fr (40 km offshore Toulon, France) sites and the installation of 31+7 detection units. For the next step (KM3NeT 2.0) completion of two detectors are planned as extension of the detectors realized during the first phase of construction: ARCA for high energies (E > TeV) in Italy and ORCA for low energies (GeV range) in France. A prototype digital optical module made of 31” PMTs was deployed in April 2013 inside the ANTARES neutrino telescope. This prototype, attached to an ANTARES string, was operated for one year and a half. It validated the multi-PMT technology and demonstrated the capability to identify muons with a single optical module searching for local time coincidences between PMTs inside the optical module. A prototype detection unit made of three optical modules was installed at the KM3NeT-It site. It was deployed in May 2014; it is active and taking data. More than 700 hours of data have been recorded and analyzed. The experience achieved with this prototype detection unit validates the submarine deployment procedures, the mechanics and the electronic of the apparatus, the data taking and analysis procedures. Through the study of 40K decay in sea water and dedicated data taking periods with flashing LED nanobeacons, it is possible to calibrate in time the detector with nanosecond stability. A dedicated algorithm has been developed to select atmospheric muons and reconstruct their zenith angle with a resolution of about 8 degrees. An excellent agreement is found when comparing the detected signal from muons with Monte Carlo simulations. |
author2 |
AstroParticule et Cosmologie (APC (UMR_7164)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
format |
Conference Object |
author |
Biagi, Simone Bormuth, Robert Creusot, Alexandre |
author_facet |
Biagi, Simone Bormuth, Robert Creusot, Alexandre |
author_sort |
Biagi, Simone |
title |
Performances and main results of the KM3NeT prototypes |
title_short |
Performances and main results of the KM3NeT prototypes |
title_full |
Performances and main results of the KM3NeT prototypes |
title_fullStr |
Performances and main results of the KM3NeT prototypes |
title_full_unstemmed |
Performances and main results of the KM3NeT prototypes |
title_sort |
performances and main results of the km3net prototypes |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-03626580 https://doi.org/10.22323/1.236.1164 |
op_coverage |
The Hague, Netherlands |
genre |
Orca |
genre_facet |
Orca |
op_source |
PoS 34th International Cosmic Ray Conference https://hal.science/hal-03626580 34th International Cosmic Ray Conference, Jul 2015, The Hague, Netherlands. pp.1164, ⟨10.22323/1.236.1164⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.22323/1.236.1164 hal-03626580 https://hal.science/hal-03626580 doi:10.22323/1.236.1164 INSPIRE: 1483449 |
op_doi |
https://doi.org/10.22323/1.236.1164 |
container_title |
Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015) |
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1164 |
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