0000000000726805

AUTHOR

Vernetto S

showing 3 related works from this author

The ARGO-YBJ Experiment Progresses and Future Extension

2010

Gamma ray source detection above 30 TeV is an encouraging approach for finding galactic cosmic ray origins. All sky survey for gamma ray sources using wide field of view detector is essential for population accumulation for various types of sources above 100 GeV. To target the goals, the ARGO-YBJ experiment has been established. Significant progresses have been made in the experiment. A large air shower detector array in an area of 1 km2 is proposed to boost the sensitivity. Hybrid detections with multi-techniques will allow a good discrimination between different types of primary particles, including photons and protons, thus enable an energy spectrum measurement for individual species. F…

PhotonGamma ray source cosmic ray origin detector arraymedia_common.quotation_subjectAstrophysics::High Energy Astrophysical PhenomenaPopulationDetector arrayFOS: Physical sciencesCosmic rayAstrophysicsHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)detector arrayUltra-high-energy cosmic rayeducationMathematical Physicsmedia_commonHigh Energy Astrophysical Phenomena (astro-ph.HE)Physicseducation.field_of_studyDetectorGamma ray sourceAstrophysics::Instrumentation and Methods for AstrophysicsGamma rayAstronomy and Astrophysicscosmic ray originCosmic ray originAir showerSpace and Planetary ScienceSkyAstrophysics - High Energy Astrophysical Phenomena
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Background radioactivity in the scaler mode technique of the Argo-YBJ detector

2011

""ARGO-YBJ is an extensive air shower detector located at the Yangbajing Cosmic Ray Laboratory (4300 ma.s.l., 606 g cm^−2 atmospheric depth, Tibet, China).. It is made by a single layer of Resistive Plate Chambers. (RPCs, total surface ~ 6700 m^2) grouped into 153 units. called “clusters”. The low energy threshold of the experiment is obtained using the ”scaler operation mode”, counting all the particles hitting the detector without reconstruction of the shower size and arrival direction. For each cluster the signals generated by these particles are put in coincidence in a narrow time window (150 ns) and read by four independent. scaler channels, giving the counting rates of channel. >= 1, …

PhysicsResistive touchscreenPhysics and Astronomy (miscellaneous)Atmospheric pressureSettore FIS/01 - Fisica SperimentaleDetectorScaler ModeAstronomy and AstrophysicsCosmic rayRadioactivity Array Detector Scaler ModeArray DetectorCoincidenceComputational physicsRadioactivityAir showerCoincidentArgo
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Gamma ray sources observation with the ARGO-YBJ detector

2011

In this paper we report on the observations of TeV gamma ray sources performed by the air shower de- tector ARGO-YBJ. The objects studied in this work are the blazar Markarian 421 and the extended galactic source MGROJ1908+06, monitored during 2 years of operation. Mrk421 has been detected by ARGO-YBJ with a statisti- cal significance of 11 standard deviations. The observed TeV emission was highly variable, showing large enhance- ments of the flux during active periods. The study of the spectral behaviour during flares revealed a positive correla- tion of the hardness with the flux, as already reported in the past by the Whipple telescope, suggesting that this is a long term property of the…

PhysicsNuclear and High Energy PhysicsGamma AstronomyPhysics and Astronomy (miscellaneous)Astrophysics::High Energy Astrophysical PhenomenaDetectorGamma rayFluxAstronomyExtensive Air ShowerAstronomy and AstrophysicsAstrophysicsGamma-ray astronomyArray DetectorGamma-RayArgo-YbjGamma Astronomy Array DetectorCrab NebulaAir showerPulsarMilagroBlazarInstrumentationArgoNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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