Journal
NATURE COMMUNICATIONS
Volume 8, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms14520
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Funding
- FWO-Vlaanderen (Belgium)
- BOF KU Leuven [GOA/2010/010]
- IAP Belgian Science Policy (BriX network) [P7/12]
- European Research Council [ERC-2011-AdG-291561-HELIOS]
- Belgian Agency for Innovation by Science and Technology (IWT)
- German Ministry for Education and Research (BMBF) [05P15SJCIA]
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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.
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