0000000000133401

AUTHOR

R.t. Wood

showing 3 related works from this author

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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A dedicated decay-spectroscopy station for the collinear resonance ionization experiment at ISOLDE

2013

A newdecay-spectroscopystation(DSS)has been developed to be coupled to the collinear resonance ionization spectroscopy (CRIS) beam line at CERN-ISOLDE. The system uses a rotatable wheel with ten 20 mg=cm2 carbon foils as beam implantation sites for the efficient measurement of charged decay products. Silicon detectors are placed on either side of the carbon foil in an optimal geometry to cover a large solid angle for detecting these charged particles. In addition to the silicon detectors at the on-beam axis position, a second pair of off-beam axis detectors are placed at the wheel position 108 deg. away, allowing longer-lived species to be studied. Up to three high purity germanium detector…

PhysicsNuclear and High Energy PhysicsSilicon010308 nuclear & particles physicsPhysics::Instrumentation and DetectorsUltra-high vacuumGamma raychemistry.chemical_elementGermaniumFission products[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesCharged particleBeamlinechemistry0103 physical sciencesPhysics::Accelerator PhysicsAlpha decaygamma-rayAtomic physics010306 general physicsSpectroscopyLaser-assisted decay spectroscopyInstrumentationBeam (structure)
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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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