0000000000972083

AUTHOR

S. Karkar

showing 6 related works from this author

The data acquisition system for the ANTARES neutrino telescope

2006

The ANTARES neutrino telescope is being constructed in the Mediterranean Sea. It consists of a large three-dimensional array of photo-multiplier tubes. The data acquisition system of the detector takes care of the digitisation of the photo-multiplier tube signals, data transport, data filtering, and data storage. The detector is operated using a control program interfaced with all elements. The design and the implementation of the data acquisition system are described.

Nuclear and High Energy Physics[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]Physics::Instrumentation and DetectorsData managementAstrophysics::High Energy Astrophysical PhenomenaNeutrino telescopeComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONFOS: Physical sciencesAstrophysics01 natural sciences[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]Data filteringData acquisition0103 physical sciences14. Life underwaterElectronics010306 general physicsInstrumentationdata acquisition system; neutrino telescopeRemote sensingAstroparticle physicsPhysicsneutrino telescope data acquisition system[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]010308 nuclear & particles physicsbusiness.industryDetectorAstrophysics (astro-ph)Astrophysics::Instrumentation and Methods for AstrophysicsAstronomyneutrino telescopedata acquisition systemComputer data storageFísica nuclearbusiness
researchProduct

First results of the Instrumentation Line for the deep-sea ANTARES neutrino telescope

2006

In 2005, the ANTARES Collaboration deployed and operated at a depth of 2500 m a so-called Mini Instrumentation Line equipped with Optical Modules (MILOM) at the ANTARES site. The various data acquired during the continuous operation from April to December 2005 of the MILOM confirm the satisfactory performance of the Optical Modules, their front-end electronics and readout system, as well as the calibration devices of the detector. The in-situ measurement of the Optical Module time response yields a resolution better than 0.5 ns. The performance of the acoustic positioning system, which enables the spatial reconstruction of the ANTARES detector with a precision of about 10 cm, is verified. T…

Photomultiplierneutrino astronomy; photon detection; underwater detectorPositioning systemInstrumentationAstrophysics::High Energy Astrophysical PhenomenaNeutrino astronomy Underwater detector Photon detectionFOS: Physical sciencesAstrophysics01 natural sciencesneutrino astronomy[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]0103 physical sciencesCalibrationAngular resolution010306 general physicsRemote sensingAstroparticle physicsPhysicsunderwater detector[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]010308 nuclear & particles physicsDetectorAstrophysics (astro-ph)Astrophysics::Instrumentation and Methods for AstrophysicsAstronomySITEAstronomy and AstrophysicsLIGHTPHOTON DETECTIONNEUTRINO ASTRONOMYFísica nuclearUNDERWATER DETECTORNeutrino astronomy
researchProduct

Study of Large Hemispherical Photomultiplier Tubes for the ANTARES Neutrino Telescope

2005

The ANTARES neutrino telescope, to be immersed depth in the Mediterranean Sea, will consist of a 3 dimensional matrix of 900 large area photomultiplier tubes housed in pressure resistant glass spheres. The selection of the optimal photomultiplier was a critical step for the project and required an intensive phase of tests and developments carried out in close collaboration with the main manufacturers worldwide. This paper provides an overview of the tests performed by the collaboration and describes in detail the features of the PMT chosen for ANTARES.

Nuclear and High Energy PhysicsPhotomultiplierPhysics - Instrumentation and DetectorsNeutrino detectionNeutrino telescopeFOS: Physical sciences01 natural scienceslarge area photosensor hemispherical photomultiplier neutrino detectionNuclear physicsOpticsIntensive Phase0103 physical sciences14. Life underwater[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]010306 general physicsInstrumentationAstroparticle physicsPhysics010308 nuclear & particles physicsbusiness.industryHemispherical photomultiplierInstrumentation and Detectors (physics.ins-det)Large area photosensorGlass spheresNeutrino detector95.55.Vj; 85.60.HaFísica nuclearbusinesshemispherical photomultiplier; large area photosensor; neutrino detection
researchProduct

Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation

2021

Full list of authors: Abdalla, H.; Abe, H.; Acero, F.; Acharyya, A.; Adam, R.; Agudo, I; Aguirre-Santaella, A.; Alfaro, R.; Alfaro, J.; Alispach, C.; Aloisio, R.; Batista, R. Alves; Amati, L.; Amato, E.; Ambrosi, G.; Anguner, E. O.; Araudo, A.; Armstrong, T.; Arqueros, F.; Arrabito, L.; Asano, K.; Ascasibar, Y.; Ashley, M.; Backes, M.; Balazs, C.; Balbo, M.; Balmaverde, B.; Baquero Larriva, A.; Martins, V. Barbosa; Barkov, M.; Baroncelli, L.; de Almeida, U. Barres; Barrio, J. A.; Batista, P-, I; Becerra Gonzalez, J.; Becherini, Y.; Beck, G.; Tjus, J. Becker; Belmont, R.; Benbow, W.; Bernardini, E.; Berti, A.; Berton, M.; Bertucci, B.; Beshley, V; Bi, B.; Biasuzzi, B.; Biland, A.; Bissaldi, …

Gamma ray AstronomyCherenkov Telescope ArrayaxionsMATÉRIA ESCURAredshift: dependenceAstronomyGamma ray experimentsgamma ray experimentsAstrophysics01 natural sciencesCosmologyObservatorycosmological model: parameter spacegamma ray experimentHigh Energy Astrophysical Phenomena (astro-ph.HE)astro-ph.HEPhysicsCherenkov telescopes ; IACT technique ; Gamma rays ; Cosmic raysnew physics4. EducationSettore FIS/01 - Fisica SperimentaleAstrophysics::Instrumentation and Methods for AstrophysicsGamma-ray astronomyviolation: Lorentz3. Good healthobservatoryExtragalactic background lightastro-ph.COaxion-like particlesFísica nuclearAstrophysics - High Energy Astrophysical PhenomenaAstrophysics - Cosmology and Nongalactic Astrophysicsgamma ray: propagationCosmology and Nongalactic Astrophysics (astro-ph.CO)Active galactic nucleusAxionsAstrophysics::High Energy Astrophysical PhenomenaDark matterFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic Astrophysicsinvariance: Lorentzjet: relativisticdark matter: halo0103 physical sciencesactive galactic nuclei; gamma ray experiments; axions; extragalactic magnetic fieldsAGNBlazarbackground010308 nuclear & particles physicsFísicaAstronomy and AstrophysicssensitivityCherenkov Telescope Arrayaxionextragalactic magnetic fieldsactive galactic nuclei[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]absorptionstatisticalBlazarsTelescopes
researchProduct

Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

2021

Full list of authors: Acharyya, A.; Adam, R.; Adams, C.; Agudo, I.; Aguirre-Santaella, A.; Alfaro, R.; Alfaro, J.; Alispach, C.; Aloisio, R.; Alves Batista, R.; Amati, L.; Ambrosi, G.; Angüner, E. O.; Antonelli, L. A.; Aramo, C.; Araudo, A.; Armstrong, T.; Arqueros, F.; Asano, K.; Ascasíbar, Y. Ashley, M.; Balazs, C.; Ballester, O.; Baquero Larriva, A.; Barbosa Martins, V.; Barkov, M.; Barres de Almeida, U.; Barrio, J. A.; Bastieri, D.; Becerra, J.; Beck, G.; Becker Tjus, J.; Benbow, W.; Benito, M.; Berge, D.; Bernardini, E.; Bernlöhr, K.; Berti, A.; Bertucci, B.; Beshley, V.; Biasuzzi, B.; Biland, A.; Bissaldi, E.; Biteau, J.; Blanch, O.; Blazek, J.; Bocchino, F.; Boisson, C.; Bonneau Arbe…

Cherenkov Telescope ArrayMATÉRIA ESCURAscale: TeVAstronomyatmosphere [Cherenkov counter]dark matter experimentDark matter theoryenergy resolutionGamma ray experimentsParticleAstrophysicscosmic background radiation01 natural sciences7. Clean energyHigh Energy Physics - Phenomenology (hep-ph)benchmarkWIMPHESSenergy: fluxTeV [scale]relativistic [charged particle]gamma ray experimentMAGIC (telescope)Monte CarloEvent reconstructionPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Contractionspatial distributiontrack data analysisPhysicsdensity [dark matter]ClumpyAstrophysics::Instrumentation and Methods for AstrophysicsimagingHigh Energy Physics - Phenomenologydark matter experiments; dark matter theory; gamma ray experiments; galaxy morphologyDark matter experimentsFísica nuclearVERITASAstrophysics - High Energy Astrophysical PhenomenaSimulationsnoiseWIMPAstrophysics::High Energy Astrophysical PhenomenaDark mattersatelliteCosmic background radiationFOS: Physical sciencesAnnihilationdark matter: densityAstrophysics::Cosmology and Extragalactic AstrophysicsCherenkov counter: atmosphereheavy [dark matter]530annihilation [dark matter]GLASTDark matter experiments; Dark matter theory; Galaxy morphology; Gamma ray experimentscosmic radiation [p]0103 physical sciencesCherenkov [radiation]Candidatesddc:530AGNCherenkov radiationRadiative Processesthermal [cross section]010308 nuclear & particles physicsFísicadark matter: annihilationGamma-Ray SignalsCherenkov Telescope Array ; dark matter ; Galactic Center ; TeV gamma-ray astronomyAstronomy and AstrophysicsMassCherenkov Telescope Arrayradiation: CherenkovsensitivityMAGICGalaxyAstronomíadark matter: heavygamma rayp: cosmic radiation[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]correlationcharged particle: relativisticflux [energy]Galaxy morphology/dk/atira/pure/subjectarea/asjc/3100/3103galaxysupersymmetry[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]cross section: thermal
researchProduct

ANTARES: The first undersea neutrino telescope

2011

The ANTARES Neutrino Telescope was completed in May 2008 and is the first operational Neutrino Telescope in the Mediterranean Sea. The main purpose of the detector is to perform neutrino astronomy and the apparatus also offers facilities for marine and Earth sciences. This paper describes the design, the construction and the installation of the telescope in the deep sea, offshore from Toulon in France. An illustration of the detector performance is given. © 2011 Elsevier B.V. All rights reserved.

Optical telescopesPhysics::Instrumentation and DetectorsAstronomyMarine engineeringSubmarine cablesAstrophysics01 natural scienceslaw.inventionAstroparticlelaw010303 astronomy & astrophysicsInstrumentationPhysicsDense wavelength division multiplexingDetectorAstrophysics::Instrumentation and Methods for AstrophysicsDetectorsSubmarine cableDeep seaNeutrino astronomyFísica nuclearNeutrinoMarine technologyAstrophysics - Instrumentation and Methods for AstrophysicsNuclear and High Energy Physics[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]Wet mateable connectorAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesLINEOptical telescopePhysics::GeophysicsTelescopePhotomultiplier tube0103 physical sciencesNeutrinoDWDM14. Life underwaterDeep sea detectorInstrumentation and Methods for Astrophysics (astro-ph.IM)DETECTORAstroparticle physics010308 nuclear & particles physicswet mateable connector.Marine technologyAstronomyElementary particles[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]PhotomultipliersKM3NeTFISICA APLICADAEarth (planet)High Energy Physics::ExperimentNeutrino astronomyastroparticle; neutrino astronomy; marine technology; dwdm; photomultiplier tube; deep sea detector; submarine cable; wet mateable connector; neutrinoSYSTEMTelescopes
researchProduct