The White Rabbit Time Calibration system for KM3NeT/ARCA
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00389244" target="_blank" >RIV/68407700:21670/25:00389244 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.22323/1.501.1137" target="_blank" >https://doi.org/10.22323/1.501.1137</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.501.1137" target="_blank" >10.22323/1.501.1137</a>
Alternative languages
Result language
angličtina
Original language name
The White Rabbit Time Calibration system for KM3NeT/ARCA
Original language description
The KM3NeT neutrino telescope consists of two detectors: ARCA, at 3500m depth offshore Capo Passero, Sicily, and ORCA, at 2500m depth offshore Toulon. Both detectors consist in a 3D-grid of Detection Units (DUs), each with 18 Digital Optical Modules (DOMs), anchored on the seabed and linked to the shore station via optical fibers. Each DOM houses 31 3-inch photomultiplier tubes (PMTs) and the relative front-end electronics. The KM3NeT neutrino detector reconstructs the Cherenkov light wavefront emitted by charged particles produced in a neutrino interaction in water. In order to guarantee the expected physics goals in terms of angular resolution and sensitivity to astrophysical sources, the time resolution and timing offsets between all PMTs must be kept at the nanosecond level, knowledge of DOM positions at circa 20 cm accuracy and orientation at few degrees. The Collaboration has recently adopted the standard White Rabbit time-synchronization technology as the optimal solution to synchronize the detector electronics. After a strict qualification process, the first 17 DUs using standard White Rabbit have been produced and, since September 2024, three of them are fully operational in the ARCA detector, showing optimal time accuracy. The novel time calibration procedure and results from the ARCA detector will be shown and discussed.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/LM2023063" target="_blank" >LM2023063: Laboratoire Souterrain de Modane – participation of the Czech Republic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
39th International Cosmic Ray Conference (ICRC2025)
ISBN
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ISSN
1824-8039
e-ISSN
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Number of pages
12
Pages from-to
1-12
Publisher name
PoS - Proceedings of Science, Sissa Medialab srl
Place of publication
Trieste
Event location
Geneva
Event date
Jul 14, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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