Laser spectroscopic studies of nuclei with neutron number N

Abstract

The isotope shifts and hyperfine splittings of atomic optical lines in 132,134-143Nd ( lambda =588.79 nm), 138-145Sm ( lambda =600.42 nm) and 138-145Eu ( lambda =576.52 nm) have been measured using resonance ionization spectroscopy. The magnetic dipole and electric quadrupole moments of the odd Nd and Sm isotopes and the changes in mean square charge radii delta (r2) for all isotopes in question have been derived. A shell effect and a strong Z-dependence in the isotopic behaviour of delta (r2) at N<82 have been observed. The experimental data have been analysed in the framework of the Hartree-Fock method.