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Isotope shifts and hyperfine structure of optical transitions in Sm147-150,152,154 ii by fast-ion-beam-laser spectroscopy

Physical Review A, ISSN: 1050-2947, Vol: 51, Issue: 4, Page: 2838-2850
1995
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  • Citations
    15
    • Citation Indexes
      15
  • Captures
    1

Article Description

In this paper isotope shifts (IS's) and hyperfine structure hfs in 16 transitions of singly ionized samarium are presented. The IS's, which, to our knowledge, have not been determined previously, and the hfs are measured by collinear fast-ion-beam-laser spectroscopy. The ions are excited from metastable levels in the 4f6(7F)5d configuration to levels in the 4f5 5d6s? and 4f6(7F)6p? configurations with laser light in the red and orange part of the visible spectrum. The IS's between the isotopes Sm147-150,152,154 ii are measured for two transitions while the IS's between the even isotopes Sm148,150,152,154 ii are measured for the other 14 transitions. Three of the 14 transitions are not tabulated in the literature. Tentative compositions of the upper levels are evaluated from the IS's by using the sharing rule. The IS's measurements are also used in an absolute calibration of the acceleration voltage within an accuracy of 0.1%. The hfs of 10 levels are recorded. Corresponding magnetic-dipole and electric-quadrupole coupling constants, A and B factors, are evaluated. The A and B factors have not been determined before for three of the levels, and for the other levels they are determined with improved accuracy. © 1995 The American Physical Society.

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