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The optical module of the KM3NeT neutrino telescope is an innovative, multi-faceted large area photodetection module. It contains 31 three-inch photomultiplier tubes in a single 0.44 m diameter pressure-resistant glass sphere. The module is…

Instrumentation and Methods for Astrophysics · Physics 2022-03-21 KM3NeT Collaboration

Multi-node optical clock networks will enable future studies of fundamental physics and enable applications in quantum and classical communications as well as navigation and geodesy. We implement the first ever multi-node optical clock…

The ANTARES deep-sea neutrino telescope comprises a three-dimensional array of photomultipliers to detect the Cherenkov light induced by upgoing relativistic charged particles originating from neutrino interactions in the vicinity of the…

Instrumentation and Methods for Astrophysics · Physics 2011-02-18 The ANTARES Collaboration , J. A. Aguilar , I. Al Samarai , A. Albert , M. André , M. Anghinolfi , G. Anton , S. Anvar , M. Ardid , A. C. Assis Jesus , T. Astraatmadja , J. J. Aubert , R. Auer , B. Baret , S. Basa , M. Bazzotti , V. Bertin , S. Biagi , C. Bigongiari , M. Bou-Cabo , M. C. Bouwhuis , A. M. Brown , J. Brunner , J. Busto , F. Camarena , A. Capone , C. Carloganu , G. Carminati , J. Carr , S. Cecchini , Ph. Charvis , T. Chiarusi , M. Circella , H. Costantini , N. Cottini , P. Coyle , C. Curtil , M. P. Decowski , I. Dekeyser , A. Deschamps , C. Distefano , C. Donzaud , D. Dornic , D. Drouhin , T. Eberl , U. Emanuele , J. P. Ernenwein , S. Escoffier , F. Fehr , V. Flaminio , U. Fritsch , J. L. Fuda , S. Galata , P. Gay , G. Giacomelli , J. P. Gómez-González , K. Graf , G. Guillard , G. Halladjian , G. Hallewell , H. van Haren , A. J. Heijboer , Y. Hello , J. J. Hernández-Rey , B. Herold , J. Hössl , C. C. Hsu , M. de Jong , M. Kadler , N. Kalantar-Nayestanaki , O. Kalekin , A. Kappes , U. Katz , P. Kooijman , C. Kopper , A. Kouchner , V. Kulikovskiy , R. Lahmann , P. Lamare , G. Larosa , D. Lefèvre , G. Lim , D. Lo Presti , H. Loehner , S. Loucatos , F. Lucarelli , S. Mangano , M. Marcelin , A. Margiotta , J. A. Martinez-Mora , A. Mazure , T. Montaruli , M. Morganti , L. Moscoso , H. Motz , C. Naumann , M. Neff , D. Palioselitis , G. E. Pavalas , P. Payre , J. Petrovic , P. Piattelli , N. Picot-Clemente , C. Picq , V. Popa , T. Pradier , E. Presani , C. Racca , C. Reed , G. Riccobene , C. Richardt , M. Rujoiu , G. V. Russo , F. Salesa , P. Sapienza , F. Schöck , J. P. Schuller , R. Shanidze , F. Simeone , A. Spies , M. Spurio , J. J. M. Steijger , Th. Stolarczyk , M. Taiuti , C. Tamburini , L. Tasca , S. Toscano , B. Vallage , V. Van Elewyck , G. Vannoni , M. Vecchi , P. Vernin , G. Wijnker , E. de Wolf , H. Yepes , D. Zaborov , J. D. Zornoza , J. Zúñiga

The KM3NeT neutrino telescope will be composed of many optical modules, each of them containing 31 (3") photomultipliers, connected to a Central Logic Board. The Central Logic Board integrates Time to Digital Converters that measure Time…

Instrumentation and Methods for Astrophysics · Physics 2015-06-23 S. Biagi , A. Orzelli

A deep underwater Cherenkov telescope has been operating since 1993 in stages of growing size at 1.1 km depth in Lake Baikal. The key component of the telescope is the Optical Module (OM) which houses the highly sensitive phototube…

Astrophysics · Physics 2008-11-26 R. I. Bagduev

We report on the observation of a rare neutrino event detected by Baikal-GVD in April 2021. The event GVD210418CA is the highest-energy cascade observed by Baikal-GVD so far from the direction below the horizon. The estimated cascade energy…

Laboratory optical atomic clocks achieve remarkable accuracy (now counted to 18 digits or more), opening possibilities to explore fundamental physics and enable new measurements. However, their size and use of bulk components prevent them…

On May 2008 the ANTARES collaboration completed the installation of a neutrino telescope in the Mediterranean Sea. This detector consists of a tridimensional array of almost 900 photomultipliers (PMTs) distributed in 12 lines. These PMTs…

Instrumentation and Methods for Astrophysics · Physics 2009-11-17 Juan Pablo Gomez-Gonzalez

The magnetised near detector (ND280) of the T2K long-baseline neutrino oscillation experiment has been recently upgraded aiming to satisfy the requirement of reducing the systematic uncertainty from measuring the neutrinonucleus interaction…

High Energy Physics - Experiment · Physics 2024-11-01 S. Abe , I. Alekseev , T. Arai , T. Arihara , S. Arimoto , N. Babu , V. Baranov , L. Bartoszek , L. Berns , S. Bhattacharjee , A. Blondel , A. V. Boikov , M. Buizza-Avanzini , J. Capó , J. Cayo , J. Chakrani , P. S. Chong , A. Chvirova , M. Danilov , C. Davis , Yu. I. Davydov , A. Dergacheva , N. Dokania , D. Douqa , T. A. Doyle , O. Drapier , A. Eguchi , J. Elias , D. Fedorova , S. Fedotov , D. Ferlewicz , Y. Fuji , Y. Furui , A. Gendotti , A. Germer , L. Giannessi , C. Giganti , V. Glagolev , J. Hu , K. Iwamoto , M. Jakkapu , C. Jesús-Valls , J. Y. Ji , C. K. Jung , H. Kakuno , S. P. Kasetti , M. Kawaue , M. Khabibullin , A. Khotjantsev , T. Kikawa , H. Kikutani , H. Kobayashi , T. Kobayashi , S. Kodama , M. Kolupanova , A. Korzenev , U. Kose , Y. Kudenko , S. Kuribayashi , T. Kutter , M. Lachat , K. Lachner , D. Last , N. Latham , D. Leon Silverio , B. Li , W. Li , Z. Li , C. Lin , L. S. Lin , S. Lin , T. Lux , K. Mahtani , L. Maret , D. A. Martinez Caicedo , S. Martynenko , T. Matsubara , C. Mauger , C. McGrew , J. McKean , A. Mefodiev , E. Miller , O. Mineev , A. L. Moreno , A. Muñoz , T. Nakadaira , K. Nakagiri , V. Nguyen , L. Nicola , E. Noah , T. Nosek , W. Okinaga , L. Osu , V. Paolone , S. Parsa , R. Pellegrino , M. A. Ramirez , M. Reh , C. Ricco , A. Rubbia , K. Sakashita , N. Sallin , F. Sanchez , T. Schefke , C. M. Schloesser , D. Sgalaberna , A. Shvartsman , N. Skrobova , A. J. Speers , I. A. Suslov , S. Suvorov , D. Svirida , S. Tairafune , H. Tanigawa , A. Teklu , V. V. Tereshchenko , M. Tzanov , I. I. Vasilyev , H. T. Wallace , N. Whitney , K. Wood , Y. -h. Xu , G. Yang , N. Yershov , M. Yokoyama , Y. Yoshimoto , X. Zhao , H. Zheng , T. Zhu , P. Zilberman , E. D. Zimmerman

A prototype detection unit of the KM3NeT deep-sea neutrino telescope has been installed at 3500m depth 80km offshore the Italian coast. KM3NeT in its final configuration will contain several hundreds of detection units. Each detection unit…

Instrumentation and Methods for Astrophysics · Physics 2016-04-06 KM3NeT Collaboration , S. Adrián-Martínez , M. Ageron , F. Aharonian , S. Aiello , A. Albert , F. Ameli , E. G. Anassontzis , G. C. Androulakis , M. Anghinolfi , G. Anton , S. Anvar , M. Ardid , T. Avgitas , K. Balasi , H. Band , G. Barbarino , E. Barbarito , F. Barbato , B. Baret , S. Baron , J. Barrios , A. Belias , E. Berbee , A. M. van den Berg , A. Berkien , V. Bertin , S. Beurthey , V. van Beveren , N. Beverini , S. Biagi , A. Biagioni , S. Bianucci , M. Billault , A. Birbas , H. Boer Rookhuizen , R. Bormuth , V. Bouché , B. Bouhadef , G. Bourlis , C. Boutonnet , M. Bouwhuis , C. Bozza , R. Bruijn , J. Brunner , G. Cacopardo , L. Caillat , M. Calamai , D. Calvo , A. Capone , L. Caramete , F. Caruso , S. Cecchini , A. Ceres , R. Cereseto , C. Champion , F. Château , T. Chiarusi , B. Christopoulou , M. Circella , L. Classen , R. Cocimano , A. Coleiro , S. Colonges , R. Coniglione , A. Cosquer , M. Costa , P. Coyle , A. Creusot , G. Cuttone , C. D'Amato , A. D'Amico , G. De Bonis , G. De Rosa , N. Deniskina , J. -J. Destelle , C. Distefano , F. Di Capua , C. Donzaud , D. Dornic , Q. Dorosti-Hasankiadeh , E. Drakopoulou , D. Drouhin , L. Drury , D. Durand , T. Eberl , D. Elsaesser , A. Enzenhöfer , P. Fermani , L. A. Fusco , D. Gajanana , T. Gal , S. Galatà , F. Garufi , M. Gebyehu , V. Giordano , N. Gizani , R. GraciaRuiz , K. Graf , R. Grasso , G. Grella , A. Grmek , R. Habel , H. van Haren , T. Heid , A. Heijboer , E. Heine , S. Henry , J. J. Hernández-Rey , B. Herold , M. A. Hevinga , M. van der Hoek , J. Hofestädt , J. Hogenbirk , C. Hugon , J. Hößl , M. Imbesi , C. W. James , P. Jansweijer , J. Jochum , M. de Jong , M. Jongen , M. Kadler , O. Kalekin , A. Kappes , E. Kappos , U. Katz , O. Kavatsyuk , P. Keller , G. Kieft , E. Koffeman , H. Kok , P. Kooijman , J. Koopstra , A. Korporaal , A. Kouchner , I. Kreykenbohm , V. Kulikovskiy , R. Lahmann , P. Lamare , G. Larosa , D. Lattuada , H. Le Provost , K. P. Leismüller , A. Leisos , D. Lenis , E. Leonora , M. LindseyClark , C. D. Llorens Alvarez , H. Löhner , A. Lonardo , S. Loucatos , F. Louis , E. Maccioni , K. Mannheim , K. Manolopoulos , A. Margiotta , O. Mariş , C. Markou , J. A. Martínez-Mora , A. Martini , R. Masullo , K. W. Melis , T. Michael , P. Migliozzi , E. Migneco , A. Miraglia , C. M. Mollo , M. Mongelli , M. Morganti , S. Mos , Y. Moudden , P. Musico , M. Musumeci , C. Nicolaou , C. A. Nicolau , A. Orlando , A. Orzelli , A. Papaikonomou , R. Papaleo , G. E. Păvălaş , H. Peek , C. Pellegrino , M. G. Pellegriti , C. Perrina , P. Piattelli , K. Pikounis , V. Popa , Th. Pradier , M. Priede , G. Pühlhofer , S. Pulvirenti , C. Racca , F. Raffaelli , N. Randazzo , P. A. Rapidis , P. Razis , D. Real , L. Resvanis , J. Reubelt , G. Riccobene , A. Rovelli , M. Saldaña , D. F. E. Samtleben , M. Sanguineti , A. Santangelo , P. Sapienza , J. Schmelling , J. Schnabel , V. Sciacca , M. Sedita , T. Seitz , I. Sgura , F. Simeone , V. Sipala , A. Spitaleri , M. Spurio , G. Stavropoulos , J. Steijger , T. Stolarczyk , D. Stransky , M. Taiuti , G. Terreni , D. Tézier , S. Théraube , L. F. Thompson , P. Timmer , L. Trasatti , A. Trovato , M. Tselengidou , A. Tsirigotis , S. Tzamarias , E. Tzamariudaki , B. Vallage , V. Van Elewyck , J. Vermeulen , P. Vernin , P. Vicini , S. Viola , D. Vivolo , P. Werneke , L. Wiggers , J. Wilms , E. de Wolf , R. H. L. van Wooning , E. Zonca , J. D. Zornoza , J. Zúñiga , A. Zwart

In systems with multiple radiation detectors, time synchronization of the data collected from different detectors is essential to reconstruct multi-detector events such as scattering and coincidences. In cases where the number of detectors…

Instrumentation and Detectors · Physics 2019-09-04 Wolfgang Hennig , Vincent Thomas , Shawn Hoover , Olivier Delaune

The transmission time of an electromagnetic signal in the vicinity of the earth is calculated to c-2 and contains an orbital Sagnac term. On earth, the synchronisation of the Barycentric Coordinate Time (TCB) can be realised by atomic…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Francois Goy

We present an updated measurement of the diffuse astrophysical neutrino flux using Baikal-GVD cascade data collected between April 2018 to March 2024. In this period, the detector grew from 15% to 55% of its baseline cubic kilometer…

Alternative theories of gravity predict up to six distinct polarization modes for gravitational waves. Strong gravitational lensing of gravitational waves allows us to probe the polarization content of these signals by effectively…

General Relativity and Quantum Cosmology · Physics 2022-11-03 Ignacio Magaña Hernandez

The design and performance of the GPS Timing and Control (GTC) System of the High Altitude Water Cerenkov (HAWC) gamma ray observatory is described. The GTC system provides a GPS synchronized absolute timestamp, with an accuracy better than…

Instrumentation and Methods for Astrophysics · Physics 2014-10-28 Anushka Udara Abeysekara , Tilan N. Ukwatta , Dan Edmunds , James Linnemann , Asif Imran , Gerd Kunde , Ian Wisher

KM3NeT is a future multi-cubic-kilometre water Cherenkov neutrino telescope currently entering a first construction phase. It will be located in the Mediterranean Sea and comprise about 600 vertical structures called detection units. Each…

Instrumentation and Methods for Astrophysics · Physics 2014-08-20 Alexander Enzenhöfer , KM3NeT Consortium

Inter-channel mis-synchronisation can be a limiting factor to the time resolution of high performance timing detectors with multiple readout channels and independent electronics units. In these systems, time calibration methods employed…

Instrumentation and Detectors · Physics 2026-03-03 S. Abe , H. Alarakia-Charles , I. Alekseev , C. Alt , T. Arai , T. Arihara , S. Arimoto , A. M. Artikov , Y. Awataguchi , N. Babu , V. Baranov , G. Barr , D. Barrow , L. Bartoszek , L. Bernardi , L. Berns , S. Bhattacharjee , A. V. Boikov , A. Blanchet , A. Blondel , A. Bonnemaison , S. Bordoni , M. H. Bui , T. H. Bui , F. Cadoux , S. Cap , A. Cauchois , J. Chakrani , P. S. Chong , A. Chvirova , P. Collard , M. Danilov , C. Davis , V. Davouloury , Yu. I. Davydov , A. Dergacheva , C. Domangue , D. Douqa , T. A. Doyle , O. Drapier , A. Eguchi , J. Elias , G. Erofeev , Y. Favre , D. Fedorova , S. Fedotov , D. Ferlewicz , Y. Fujii , R. Fujita , Y. Furui , F. Gastaldi , A. Gendotti , A. Germer , L. Giannessi , C. Giganti , V. Glagolev , R. Guillaumat , G. Ha , N. C. Hastings , I. Heitkamp , J. Hu , C. Husi , A. K. Ichikawa , T. H. Ishida , A. Izmaylov , K. Iwamoto , M. Jakkapu , C. Jesús-Valls , J. Y. Ji , P. Jonsson , C. K. Jung , H. Kakuno , V. S. Kasturi , M. Kawaue , P. T. Keener , M. Khabibullin , N. V. Khomutov , A. Khotjantsev , T. Kikawa , H. Kikutani , N. V. Kirichkov , A. Klustová , H. Kobayashi , T. Kobayashi , L. Koch , S. Kodama , A. O. Kolesnikov , M. Kolupanova , A. Korzenev , T. Koto , Y. Kudenko , S. Kuribayashi , T. Kutter , M. Lachat , K. Lachner , M. Lamers James , D. Last , N. Latham , M. Lawe , T. A. Le , D. Leon Silverio , B. Li , W. Li , C. Lin , M. Louzir , T. Lux , K. K. Mahtani , S. Manly , D. A. Martinez Caicedo , N. Mashin , T. Matsubara , C. Mauger , K. S. McFarland , C. McGrew , J. McKean , A. Mefodiev , E. Miller , O. Mineev , A. Minamino , A. L. Moreno , A. Muñoz , T. Nakadaira , K. Nakagiri , T. Nakaya , J. Nanni , L. Nicolas , A. D. Nguyen , D. T. Nguyen , H. Nguyen , V. Nguyen , E. Noah Messomo , T. Nosek , H. M. O'Keeffe , T. Ogawa , W. Okinaga , L. Osu , V. Paolone , G. Pelleriti , L. Pickering , M. A. Ramírez , M. Reh , G. Reina , C. Riccio , S. Roth , A. Rubbia , F. Saadi , K. Sakashita , N. Sallin , S. Samani , F. Sanchez , T. Schefke , C. Schloesser , D. Sgalaberna , A. Shaikovskiy , A. Shvartsman , Y. Shiraishi , N. Shvarev , N. Skrobova , D. Smyczek , M. Smy , A. Speers , D. Svirida , M. Ta , S. Tairafune , M. Tani , H. Tanigawa , A. Teklu , S. Tereshchenko , V. V. Tereshchenko , T. Thaiduc , T. Tsushima , M. Tzanov , Y. Uchida , I. I. Vasilyev , E. Villa , T. Vladisavljevic , D. Wakabayashi , H. Wallace , A. Weber , N. Whitney , C. Wret , Y. Xu , Y. Yang , N. Yershov , A. J. P. Yrey , M. Yokoyama , Y. Yoshimoto , X. Y. Zhao , H. Zheng , H. Zhong , T. Zhu , E. D. Zimmerman , M. Zito

The deep underwater Cherenkov neutrino telescope NT-200 is currently under construction at lake Baikal. Its first stage NT-36 consisting of 36 optical modules has operated over 2 years since April 1993 till March 1995. Here we present a…

Astrophysics · Physics 2012-08-27 The Baikal Collaboration

Clock synchronization is necessary for communication and distributed computing tasks. Previous schemes based on photon timing correlations use pulsed light or photon pairs for their strong timing correlations. In this work, we demonstrate…

A new catalog of visual double systems containing eclipsing binaries as one component is presented. The main purpose of this catalog is to compile a complete list of all known multiples of this variety, both for current analysis and to…

Solar and Stellar Astrophysics · Physics 2009-07-30 P. Zasche , M. Wolf , W. I. Hartkopf , P. Svoboda , R. Uhlar , A. Liakos , K. Gazeas