Abstract
The laser-rf double-resonance technique has been used to make high-precision measurements of the hyperfine structure of the 4)5d ,3,4, metastable levels in ,153. A new apparatus which uses a collinear laser and a slow ion beam (∼1.35 keV) enables us to achieve a long transit time in the rf region. Consequently, narrow linewidths of ∼60 kHz have been observed for the first time in such systems. The magnetic dipole and electric quadrupole hyperfine constants (A and B, respectively) of these metastable levels have been determined with a higher precision (2–3 orders of magnitude) than before. A J-dependent magnetic hyperfine anomaly has been observed in the states. In addition, more accurate values of nuclear quadrupole moments of the two isotopes ,153 have been determined.
- Received 6 April 1987
DOI:https://doi.org/10.1103/PhysRevA.36.1983
©1987 American Physical Society