The hyperfine structures and constants of the 5d${\mathrm{}}^4$${\mathit{D}}_{7/2}$, 6p${\mathrm{}}^4$${\mathit{P}}_{5/2}$, 6p${\mathrm{}}^2$${\mathit{D}}_{5/2}$, and 6p${\mathrm{}}^4$${\mathit{D}}_{7/2}$ levels have been experimentally determined with the use of a fast ion-beam-laser technique. © 1996 The American Physical Society.

• Received 8 August 1995

DOI:https://doi.org/10.1103/PhysRevA.53.109