Search results for "Astronomia gamma"

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Software Timing Calibration of the ARGO-YBJ Detector

2009

The ARGO-YBJ experiment is mainly devoted to search for astronomical gamma sources. The arrival direction of air showers is reconstructed thanks to the times measured by the pixels of the detector. Therefore, the timing calibration of the detector pixels is crucial in order to get the best angular resolution and pointing accuracy. Because of the large number of pixels a hardware timing calibration is practically impossible. Therefore an off-line software calibration has been adopted. Here, the details of the procedure and the results are presented. (C) 2008 Elsevier B.V. All rights reserved.

PhysicsPixelCalibration (statistics)business.industryPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaDetectorSettore FIS/01 - Fisica SperimentaleComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONAstrophysics::Instrumentation and Methods for AstrophysicsAstronomy and AstrophysicsAstronomia gammaGamma Astronomy Timing Calibration Extensive Air ShowersSciami estesiCalibrazione temporaleOpticsSoftwareRaggi cosmiciSettore FIS/05 - Astronomia e AstrofisicaAngular resolutionbusinessArgoRemote sensing
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The Status of the ARGO Experiment at YBJ

2007

The ARGO-YBJ experiment, located at Yangbajing, Tibet, China, performed by a wide Sino-Italian collaboration, is designed to study cosmic rays, sub-TeV gamma ray sources and GeV Gamma Ray Burst (GRB) emission in the northern hemisphere, by means of detecting small size EAS (Extensive Air Shower) using a full coverage RPC (Resistive Plate Chamber) carpet. The central carpet of the detector is installed and put into operation to date, with 1900 m^2 of the carpet already operating since December 2004. With a trigger multiplicity of ≥60 hits, corresponding to a primary mode energy of 2 TeV, the angular resolution of EAS measurements is < 1 degree for showers with more than 500 recorded hits. We…

PhysicsNuclear and High Energy PhysicsCosmic rays gamma ray sources Gamma Ray Burst Extensive Air Shower Resistive Plate ChamberARGO-YBJAstrophysics::High Energy Astrophysical PhenomenaDetectorNorthern HemisphereGamma rayAstrophysics::Instrumentation and Methods for AstrophysicsResistive plate chamberCosmic rayAstrophysicsAstronomia gammaAtomic and Molecular Physics and OpticsSciami estesiRaggi cosmiciAir showerGamma-ray burstArgo
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