Hyperfine Structure Measurements in Eu II With Collinear Laser-Ion Beam Technique

Hyperfine structure measurements of the 4 f 7 ( 8 S 7/2 0 )6 p 3/2 , (7/2, 3/2) 3,4 and 4 f 7 ( 8 S 0 )5 d 9 D 2, 3, 4, 5 0 levels in 151 Eu II and 153 Eu II have been performed with collinear laser-ion beam technique. The hyperfine structure constants A and B as well as the nuclear electric quadrupole moments Q have been evaluated.