0000000000130702

AUTHOR

P. Larmonier

showing 4 related works from this author

Large Shape Staggering in Neutron-Deficient Bi Isotopes

2021

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Enhancing the extraction of laser-ionized beams from an arc discharge ion source volume

2018

© 2018 The Author(s) The Versatile Arc Discharge and Laser Ion Source (VADLIS) is a recently established ion source for the CERN-ISOLDE radioactive ion beam facility. It offers either electron-impact ionization (VADIS-mode) or resonance laser ionization (RILIS-mode). The choice of operating mode depends on the element of interest or the required beam purity. Particle-in-cell simulations using the VSim software show that the ion extraction efficiency of the VADLIS in RILIS-mode can be improved if it is equipped with an insulated extractor plate, to which an optimal voltage can be applied. This enables optimization of the RILIS-mode ion extraction independently of the electron density. Experi…

Nuclear and High Energy PhysicsMaterials scienceIon beamchemistry.chemical_element7. Clean energy01 natural scienceslaw.inventionIonElectric arclawIonization0103 physical sciencesGalliumDetectors and Experimental TechniquesArc discharge ionization010306 general physicsInstrumentationResonance laser ionization010308 nuclear & particles physicsbusiness.industryLaserIon sourceIon sourceParticle-in-cell simulationchemistryOptoelectronicsPhysics::Accelerator PhysicsRadioactive ion beambusinessBeam (structure)Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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The CERN/ISOLDE Laser Ion Source

2017

Laser resonance photo-ionization an essential aspect of radioactive ion beam production for fundamental and applied physics research. The laser ion source of the ISOLDE facility, described here, is the most versatile of its type worldwide.

Materials scienceLarge Hadron ColliderApplied physicsIon beambusiness.industry02 engineering and technology021001 nanoscience & nanotechnologyLaser01 natural sciencesIon sourcelaw.invention010309 opticsOpticslaw0103 physical sciencesPhysics::Accelerator PhysicsLaser resonancePhysics::Atomic PhysicsNuclear Experiment0210 nano-technologybusinessLaser beamsConference on Lasers and Electro-Optics
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Large shape staggering in neutron-deficient Bi isotopes

2021

The changes in the mean-square charge radius (relative to 209Bi), magnetic dipole, and electric quadrupole moments of 187,188,189,191Bi were measured using the in-source resonance-ionization spectroscopy technique at ISOLDE (CERN). A large staggering in radii was found in 187,188,189Big, manifested by a sharp radius increase for the ground state of 188Bi relative to the neighboring 187,189Big. A large isomer shift was also observed for 188Bim. Both effects happen at the same neutron number, N=105, where the shape staggering and a similar isomer shift were observed in the mercury isotopes. Experimental results are reproduced by mean-field calculations where the ground or isomeric states were…

PhysicsMagnetic moment010308 nuclear & particles physics116 Chemical sciencesGeneral Physics and Astronomy[CHIM.MATE]Chemical Sciences/Material chemistry01 natural sciencesPhysique atomique et nucléaire[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistryCharge radiusNeutron number0103 physical sciencesQuadrupoleNuclear Physics - ExperimentNeutronAtomic physics010306 general physicsSpin (physics)Ground stateMagnetic dipole
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