6533b836fe1ef96bd12a0a53
RESEARCH PRODUCT
Use of a Continuous Wave Laser and Pockels Cell for Sensitive High-Resolution Collinear Resonance Ionization Spectroscopy
B. A. MarshKieran FlanaganJ. BillowesXiaofei YangR. F. Garcia RuizGerda NeyensV. N. FedosseevSebastian RotheH. H. StrokeRuohong LiG. J. Farooq-smithRalf Erik RosselRalf Erik RosselShane WilkinsR. P. De GrooteThomas Elias CocoliosKara Marie LynchKara Marie LynchKara Marie LynchS. FranchooKlaus WendtH. HeylenI. BudinčevićMark BissellMark Bissellsubject
Physics010308 nuclear & particles physicsGeneral Physics and Astronomychemistry.chemical_element[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Laser7. Clean energy01 natural sciencesPockels effectFranciumIonlaw.inventionNuclear magnetic resonancechemistryOrders of magnitude (time)law0103 physical sciencesQuadrupoleContinuous waveNuclear Physics - ExperimentAtomic physics010306 general physicsSpectroscopydescription
New technical developments have led to a 2 orders of magnitude improvement of the resolution of the collinear resonance ionization spectroscopy (CRIS) experiment at ISOLDE, CERN, without sacrificing the high efficiency of the CRIS technique. Experimental linewidths of 20(1) MHz were obtained on radioactive beams of francium, allowing us for the first time to determine the electric quadrupole moment of the short lived [t1/2=22.0(5) ms]219Fr Qs=−1.21(2) eb, which would not have been possible without the advantages offered by the new method. This method relies on a continuous-wave laser and an external Pockels cell to produce narrow-band light pulses, required to reach the high resolution in two-step resonance ionization. Exotic nuclei produced at rates of a few hundred ions/s can now be studied with high resolution, allowing detailed studies of the anchor points for nuclear theories. ispartof: Physical Review Letters vol:115 issue:13 pages:1-6 ispartof: location:United States status: published
year | journal | country | edition | language |
---|---|---|---|---|
2015-09-24 | Physical Review Letters |