A study of the spectrum of natural dysprosium with the laser-atomic-beam technique. II. Hyperfine structure

For pt.I see ibid., vol.13, p.2185 (1980). The hyperfine structure of 21 levels of the odd isotopes 161 Dy and 163 Dy has been studied in laser-atomic-beam experiments. The magnetic dipole and electric quadrupole interaction constants have been analysed using the effective operator formalism and wavefunctions from fine-structure calculations. From this analysis the electronic quadrupole moments of 161 Dy and 163 Dy, corrected for the Sternheimer effect, have been evaluated to be 2.42(27)*10 2 fm 2 and 2.55(29)*10 2 fm 2 respectively.