In-gas laser ionization and spectroscopy of actinium isotopes near the N=126 closed shell

Camillo Granados, P. Creemers, Rafael Ferrer, Liam Paul Gaffney, W. Gins, R. De Groote, Mark Huyse, Yuri Kudryavtsev, Yisel Martinez, Sebastian Raeder, Simon Sels, Celine Van Beveren, Paul Van den Bergh, Piet Van Duppen, Kasia Wrzosek-Lipska, Alexandra Zadvornaya, A. Barzakh, Beyhan Bastin, P. Delahaye, L. HijaziN. Lecesne, F. Luton, J. Piot, Hervé Savajols, J.C. Thomas, E. Traykov, R. Beerwerth, S. Fritzsche, Michael Block, X. Fléchard, S. Franchoo, Lars Ghys, H. Grawe, R. Heinke, T. Kron, P. Naubereit, K. Wendt, M. Laatiaoui, Iain Moore, Volker Sonnenschein, M. Loiselet, E. Mogilevskiy, S. Rothe

    Research outputpeer-review


    The in-gas laser ionization and spectroscopy (IGLIS) technique was applied on the 212–215Ac isotopes, producedat the Leuven Isotope Separator On-Line (LISOL) facility by using the in-gas-cell and the in-gas-jet methods. The first application under on-line conditions of the in-gas-jet laser spectroscopy method showed a superior performance in terms of selectivity, spectral resolution, and efficiency in comparison with the in-gas-cell method. Following the analysis of both experiments, the magnetic-dipole moments for the 212–215Ac isotopes, electric quadrupole moments and nuclear spins for the 214,215Ac isotopes are presented and discussed. A good agreement is obtained with large-scale nuclear shell-model calculations by using a 208Pb core.
    Original languageEnglish
    Article number054331
    Pages (from-to)1-13
    Number of pages13
    JournalPhysical Review C
    StatePublished - 29 Nov 2017

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