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

Research output: Contribution to journalArticle


  • 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. Hijazi
  • N. Lecesne
  • F. Luton
  • J. Piot
  • Hervé Savajols
  • J.C. Thomas
  • E. Traykov
  • R. Beerwerth
  • S. Fritzsche
  • Michael Block
  • X. Fléchard
  • S. Franchoo
  • H. Grawe
  • R. Heinke
  • T. Kron
  • P. Naubereit
  • K. Wendt
  • M. Laatiaoui
  • Iain Moore
  • Volker Sonnenschein
  • M. Loiselet
  • E. Mogilevskiy
  • S. Rothe

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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


  • laser ionization, spectroscopy, actinium, alpha decay

ID: 3723054