Time calibration of the ANTARES neutrino telescope

Aguilar, J. A.; Samarai, I. Al; Albert, A.; André, M.; Anghinolfi, M.; Anton, G.; Anvar, S.; Ardid, M.; Jesus, A.C. Assis; Astraatmadja, T.; Aubert, J.J.; Auer, R.; Baret, B.; Basa, S.; Bazzotti, M.; Bertín, V.; Biagi, S.; Bigongiari, C.; Bou-Cabo, M.; Bouwhuis, M. C.; Brown, A. M.; Brünner, J.; Busto, J.; Camarena, F.; Capone, A.; Cârloganu, C.; Carminati, G.; Carr, J.; Cecchini, S.; Charvis, Ph.; Chiarusi, T.; Circella, M.; Costantini, H.; Cottini, N.; Coyle, P.; Curtil, C.; Decowski, M. P.; Dekeyser, I.; Deschamps, A.; Distefano, C.; Donzaud, C.; Dornic, D.; Drouhin, D.; Eberl, T.; Emanuele, U.; Ernenwein, Jean-Pierre; Escoffier, S.; Fehr, F.; Flaminio, V.; Fritsch, U.; Fuda, J.-L.; Galatà, S.; Gay, P.; Giacomelli, G.; Gómez-González, J.; Graf, Κ.; Guillard, G.; Halladjian, G.; Hallewell, G. D.; Haren, Hans van; Heijboer, A.; Hello, Y.; Hernández-Rey, J. J.; Herold, B.; Hößl, J.; Hsu, C. C.; Jong, M. de; Kadler, M.; Kalantar‐Nayestanaki, N.; Kalekin, O.; Kappes, A.; Katz, U.; Kooijman, P.; Kopper, C.; Kouchner, A.; Kulikovskiy, V.; Lahmann, R.; Lamare, P.; Larosa, G.; Lefèvre, D.; Lim, G.; Presti, Domenico Lo; Loehner, H.; Loucatos, S.; Lucarelli, F.; Mangano, S.; Marcelin, M.; Margiotta, A.; Martínez-Mora, J. A.; Mazure, A.; Montaruli, T.; Morganti, M.; Moscoso, L.; Motz, H.; Naumann, C.; Neff, M.; Palioselitis, D.; Păvălaş, G. E.; Payre, P.; Petrović, J.; Piattelli, P.; Picot-Clémente, N.; Picq, C.; Popa, V.; Pradier, T.; Presani, E.; Racca, C.; Reed, C. M.; Riccobene, G.; Richardt, C.; Rujoiu, M.; Russo, G.; Salesa, F.; Sapienzap, P.; Schöck, F. M.; Schuller, J. P.; Shanidze, R.; Simeone, F.; Spies, A.; Spurio, M.; Steijger, J. J. M.; Stolarczyk, Th.; Taiuti, M.; Tamburini, Christian; Tasca, L.; Toscano, S.; Vallage, B.; Elewyck, V. Van; Vannoni, G.; Vecchi, M.; Vernin, P.; Wijnker, G.; Wolf, E. de; Yepes, H.; Zaborov, D.; Zornoza, J. D.; Zúñiga, J.

doi:10.1016/j.astropartphys.2010.12.004

Cited by 87 publications

(48 citation statements)

References 9 publications

(14 reference statements)

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“…The graph shows the distribution of the registered ToT for one of the PMTs in the DOM. Two distinct peaks can be identified: one with a ToT attributable to single photon signals at 35 ns, with a spread of 5.5 ns FWHM, and one with significantly longer ToT caused by the flashing of the ANTARES calibration laser [20] and is equivalent to 8-10 photo-electrons. The small peak at about 15 ns is most likely an instrumental effect of the pulseshaping circuitry.…”

Section: Calibrationmentioning

confidence: 99%

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

Adrián-Martínez¹,

Ageron²,

Aharonian³

et al. 2014

Eur. Phys. J. C

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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 same 40 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. a

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Section: Calibrationmentioning

confidence: 99%

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

Adrián-Martínez¹,

Ageron²,

Aharonian³

et al. 2014

Eur. Phys. J. C

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“…In order to meet the target angular resolution of the detector, a time syncronisation between all detector components better than 1 ns is required [23]. To achieve such precision a master clock system, located onshore, provides a common reference time to all the offshore electronics, via a network of optical fibers.…”

Section: Time Calibrationmentioning

confidence: 99%

“…Further calibration is needed for the delay between the time when the hit is detected and the photon arrival time at the photocathode of the PMT. These time calibrations were performed during the detector construction and are continuously monitored on a weekly basis [23]. Two systems of external light sources are used: LED beacons located on four storeys on each detector line, and laser beacons located on the base, at the bottom of several detection lines.…”

Section: Time Calibrationmentioning

confidence: 99%

Long-term monitoring of the ANTARES optical module efficiencies using $$^{40}\mathrm{{K}}$$ 40 K decays in sea water

et al. 2018

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Cherenkov light induced by radioactive decay products is one of the major sources of background light for deep-sea neutrino telescopes such as ANTARES. These decays are at the same time a powerful calibration source. Using data collected by the ANTARES neutrino telescope from mid 2008 to 2017, the time evolution of the photon detection efficiency of optical modules is studied. A modest loss of only 20% in 9 years is observed. The relative time calibration between adjacent modules is derived as well.

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“…The absolute time stamping is performed by interfacing the clock system to the GPS which provides a time accuracy of about 100 ns with respect to Universal Time Coordinated [13]. The data are dominated by optical background due to bioluminescence and natural radioactive decays.…”

Section: Neutrino Detectionmentioning

confidence: 99%

First search for neutrinos in correlation with gamma-ray bursts with the ANTARES neutrino telescope

Adrián-Martínez

Samarai²,

Albert³

et al. 2013

J. Cosmol. Astropart. Phys.

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Abstract.A search for neutrino-induced muons in correlation with a selection of 40 gammaray bursts that occurred in 2007 has been performed with the ANTARES neutrino telescope. During that period, the detector consisted of 5 detection lines. The ANTARES neutrino telescope is sensitive to TeV-PeV neutrinos that are predicted from gamma-ray bursts. No events were found in correlation with the prompt photon emission of the gamma-ray bursts and upper limits have been placed on the flux and fluence of neutrinos for different models.

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Time calibration of the ANTARES neutrino telescope

Cited by 87 publications

References 9 publications

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

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

Long-term monitoring of the ANTARES optical module efficiencies using $$^{40}\mathrm{{K}}$$ 40 K decays in sea water

First search for neutrinos in correlation with gamma-ray bursts with the ANTARES neutrino telescope

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