Search results for "Radioactive decay spectroscopy"

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The Collinear Resonance Ionization Spectroscopy (CRIS) experimental setup at CERN-ISOLDE

2012

The CRIS setup at CERN-ISOLDE is a laser spectroscopy experiment dedicated to the high-resolution study of the spin, hyperfine structure and isotope shift of radioactive nuclei with low production rates (a few per second). It combines the Doppler-free resolution of the in-flight collinear geometry with the high detection efficiency of resonant ionisation. A recent commissioning campaign has demonstrated a 1% experimental efficiency, and as low as a 0.001% non-resonant ionisation. The current status of the experiment and its recent achievements with beams of francium isotopes are reported. The first identified systematic effects are discussed. publisher: Elsevier articletitle: The Collinear …

Nuclear and High Energy Physics[PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph]chemistry.chemical_element[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energy01 natural sciencesFranciumIonization0103 physical sciencesPhysics::Atomic PhysicsLaser spectroscopyNuclear Experiment010306 general physicsSpin (physics)SpectroscopyInstrumentationHyperfine structureComputingMilieux_MISCELLANEOUSLarge Hadron ColliderIsotopeRadioactive decay spectroscopy010308 nuclear & particles physicsIon beam purificationIsotope shiftchemistry13. Climate actionPhysics::Accelerator PhysicsHyperfine structureAtomic physicsRadioactive decayNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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CRIS: A new method in isomeric beam production

2013

The Collinear Resonance Ionization Spectroscopy (CRIS) experiment at ISOLDE, CERN, uses laser radiation to stepwise excite and ionize an atomic beam for the purpose of ultra-sensitive detection of rare isotopes, and hyperfine-structure measurements. The technique also offers the ability to purify an ion beam that is heavily contaminated with radioactive isobars, including the ground state of an isotope from its isomer, allowing decay spectroscopy on nuclear isomeric states to be performed. The isomeric ion beam is selected by resonantly exciting one of its hyperfine structure levels, and subsequently ionizing it. This selectively ionized beam is deflected to a decay spectroscopy station (DS…

Ion beamRadioactive decay spectroscopyPhysicsQC1-999chemistry.chemical_elementIon beam purificationFranciumSemiconductor detectorIsotope shiftchemistryIonizationPhysics::Atomic and Molecular ClustersPhysics::Accelerator PhysicsNeutronHyperfine structurePhysics::Atomic PhysicsAtomic physicsLaser spectroscopySpectroscopyNuclear ExperimentBeam (structure)Radioactive decay
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