Search results for "Particle densities"

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Calibration of the RPC charge readout in the ARGO-YBJ experiment

2012

""The charge readout of Resistive Plate Chambers (RPCs) is implemented in the ARGO-YBJ experiment to measure the charged particle density of the shower front up to 10^4\\\/m^2, enabling the study of the primary cosmic rays with energies in the ''knee'' region. As the first time for RPCs being used this way, a telescope with RPCs and scintillation detectors is setup to calibrate the number of charged particles hitting a RPC versus its charge readout. Air shower particles are taken as the calibration beam. The telescope was tested at sea level and then moved to the ARGO-YBJ site for coincident operation with the ARGO-YBJ experiment. The charge readout shows good linearity with the particle de…

Optical telescopesNuclear and High Energy PhysicsPhysics::Instrumentation and DetectorsCamere a Piastre Resistive (RPC)Resistive plate chamberAstrophysics::High Energy Astrophysical PhenomenaCosmic raylaw.inventionTelescopeSettore FIS/05 - Astronomia E AstrofisicaOpticslawCoincidentAir showersCalibrationSea levelInstrumentationParticle densitiesCosmic raysResistive Plate Chambers Charge read-out Extended Air ShowersPhysicsAir showers Charge readout Dynamic range Knee regions Particle densities Resistive plate chambers; Calibration Charged particles Cosmic rays Experiments Optical telescopes Sea level Telescopes; Particle spectrometersResistive touchscreenScintillationDynamic rangeCharge readoutParticle spectrometersbusiness.industryCharged particlesSettore FIS/01 - Fisica SperimentaleAstrophysics::Instrumentation and Methods for AstrophysicsCharged particleAir showerCalibrazione della Risposta Analogica di RPCKnee regionsLettura Analogica di RPCCalibrationResistive plate chambersbusinessExperimentsTelescopes
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Time-dependent Landauer—Büttiker formalism for superconducting junctions at arbitrary temperatures

2016

We discuss an extension of our earlier work on the time-dependent Landauer– Büttiker formalism for noninteracting electronic transport. The formalism can without complication be extended to superconducting central regions since the Green’s functions in the Nambu representation satisfy the same equations of motion which, in turn, leads to the same closed expression for the equal-time lesser Green’s function, i.e., for the time-dependent reduced one-particle density matrix. We further write the finite-temperature frequency integrals in terms of known special functions thereby considerably speeding up the computation. Simulations in simple normal metal – superconductor – normal metal junctions…

particle densitiesspecial functionsarbitrary temperatureelectronic transportfinite temperaturesnoninteractingsuperconducting junctions
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