Decay-assisted collinear resonance ionization spectroscopy: Application to neutron-deficient francium - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review X Year : 2014

Decay-assisted collinear resonance ionization spectroscopy: Application to neutron-deficient francium

K. M. Lynch
  • Function : Author
J. Billowes
  • Function : Author
M. L. Bissell
  • Function : Author
I. Budinčević
  • Function : Author
T. E. Cocolios
  • Function : Author
R. P. de Groote
  • Function : Author
S. de Schepper
  • Function : Author
V. N. Fedosseev
  • Function : Author
K. T. Flanagan
  • Function : Author
R. F. Garcia Ruiz
  • Function : Author
H. Heylen
  • Function : Author
B. A. Marsh
  • Function : Author
G. Neyens
  • Function : Author
T. J. Procter
  • Function : Author
R. E. Rossel
  • Function : Author
S. Rothe
  • Function : Author
I. Strashnov
  • Function : Author
H. H. Stroke
  • Function : Author
K. D. A. Wendt
  • Function : Author

Abstract

This paper reports on the hyperfine-structure and radioactive-decay studies of the neutron-deficient francium isotopes $^{202-206}$Fr performed with the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at the ISOLDE facility, CERN. The high resolution innate to collinear laser spectroscopy is combined with the high efficiency of ion detection to provide a highly-sensitive technique to probe the hyperfine structure of exotic isotopes. The technique of decay-assisted laser spectroscopy is presented, whereby the isomeric ion beam is deflected to a decay spectroscopy station for alpha-decay tagging of the hyperfine components. Here, we present the first hyperfine-structure measurements of the neutron-deficient francium isotopes $^{202-206}$Fr, in addition to the identification of the low-lying states of $^{202,204}$Fr performed at the CRIS experiment.

Dates and versions

in2p3-00957479 , version 1 (10-03-2014)

Identifiers

Cite

K. M. Lynch, J. Billowes, M. L. Bissell, I. Budinčević, T. E. Cocolios, et al.. Decay-assisted collinear resonance ionization spectroscopy: Application to neutron-deficient francium. Physical Review X, 2014, 4, pp.011055. ⟨10.1103/PhysRevX.4.011055⟩. ⟨in2p3-00957479⟩
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