Resonant Ionization Spectroscopy of Ba-: Metastable and Stable Ions
Abstract
A new technique based on the combination of laser photodetachment and resonance ionization spectroscopy has been used to characterize the state composition of a fast, negative-ion beam of barium and to determine the binding energies of its long-lived components, the metastable 5d6s6p 4F9/2 state and the 6s26p 2P3/2,1/2 ground state, with an accuracy previously inaccessible for the weakly bound, negative alkaline-earth ions. Additional information about the Ba- states was obtained from lifetime studies in the ASTRID storage ring.
- Publication:
-
Physical Review Letters
- Pub Date:
- September 1995
- DOI:
- 10.1103/PhysRevLett.75.1911
- Bibcode:
- 1995PhRvL..75.1911P