Search results for "Signal Width"

showing 2 items of 2 documents

Detector response of Cherenkov radiators for calorimetry in the energy range below 14 MeV

2020

Abstract A study of the detector response of PbF 2  crystals and three different types of lead glass blocks to electrons from a 14-MeV beam of the Mainz Microtron MAMI is presented. For the first time, signal height, signal width, and homogeneity of the response of these Cherenkov radiators were determined for energies between 10 and 14 MeV. To complement the beam tests, optical properties of the materials, in particular measured transmittances in the near UV and visible spectrum, were studied. The measured detector responses were also compared to Monte Carlo simulations of energy-loss, light production, transport, and detection. These Cherenkov radiators are considered as active material o…

PhysicsNuclear and High Energy Physics010308 nuclear & particles physicsbusiness.industryDetectorMonte Carlo methodSignal WidthElectron01 natural sciencesLead glassOpticsvisual_art0103 physical sciencesvisual_art.visual_art_mediumPhysics::Accelerator PhysicsNuclear Experiment010306 general physicsbusinessInstrumentationLight dark matterMicrotronCherenkov radiationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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Test of special relativity in an ion storage ring

1996

An accurate measurement of the Doppler effect in collinear laser spectroscopy has been performed at the TSR storage ring with electron cooled7Li+ ions atΒ=0.064. This experiment is a sensitive test of theγ=(1−Β2)−1/2 factor(Β=v/c) in the special theory of relativity. The Doppler shifted frequencies of the moving7Li+ ions are compared with calibrated molecular lines at rest. The frequencies at rest for the7Li+ ions are known from independent measurements. The Doppler shifted frequencies in the collinear experiment have been measured with a precision ofδv/v=6×10−9, mainly limited by the signal width of the resonance. A corresponding upper limit of 8×10−7 is deduced for any deviation of the ti…

PhysicsNuclear and High Energy PhysicsIon beambusiness.industryResonanceSignal WidthCondensed Matter PhysicsRelativistic Doppler effectLaserAtomic and Molecular Physics and Opticslaw.inventionsymbols.namesakeOpticslawsymbolsIves–Stilwell experimentPhysical and Theoretical ChemistryAtomic physicsbusinessDoppler effectStorage ringHyperfine Interactions
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