6533b833fe1ef96bd129b96c
RESEARCH PRODUCT
Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion
R. BeerwerthR. BeerwerthR. HeinkeXavier FlechardW. GinsLiam GaffneyYu. KudryavtsevRafael FerrerC. Van BeverenB. BastinH. GraweMark HuyseIain MooreA. ZadvornayaL. HijaziR. P. De GrooteMichael BlockS. SelsP. DelahayeF. LuttonC. GranadosE. MogilevskiyE. MogilevskiyM. LaatiaouiMarc LoiseletSebastian RaederL. GhysP. NaubereitH. SavajolsStephan FritzscheStephan FritzscheSebastian RotheP. Van DuppenP. Van Den BerghN. LecesneKlaus WendtP. CreemersT. KronY. MartínezY. MartínezE. TraykovVolker SonnenscheinJ. PiotA. E. BarzakhJ-c ThomasS. Franchoosubject
Ion beamScienceGeneral Physics and Astronomy[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciences7. Clean energyGeneral Biochemistry Genetics and Molecular BiologyArticlelaw.inventionlawIonization0103 physical sciencesspectral resolutionNeutronSpectral resolution010306 general physicsSpectroscopyNuclear ExperimentPhysicsJet (fluid)Multidisciplinaryta114010308 nuclear & particles physicsQGeneral ChemistryLaserlaser ionization spectroscopyAtom laserexotic nucleisupersonic gas jetddc:500Atomic physicsdescription
Resonant laser ionization and spectroscopy are widely used techniques at radioactive ion beam facilities to produce pure beams of exotic nuclei and measure the shape, size, spin and electromagnetic multipole moments of these nuclei. However, in such measurements it is difficult to combine a high efficiency with a high spectral resolution. Here we demonstrate the on-line application of atomic laser ionization spectroscopy in a supersonic gas jet, a technique suited for high-precision studies of the ground- and isomeric-state properties of nuclei located at the extremes of stability. The technique is characterized in a measurement on actinium isotopes around the N=126 neutron shell closure. A significant improvement in the spectral resolution by more than one order of magnitude is achieved in these experiments without loss in efficiency.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-02-01 |