The hyperfine-structure separations and isotope shifts of several radioactive isotopes of thallium have been measured by optical spectroscopic techniques. The results are: μ199=1.57 nm; μ201=1.58 nm; and both |μ200| and |μ202|<~0.15 nm. The isotope-shift measurements, which include the first data of this kind obtained for heavy odd-odd nuclei, permitted a comparison of the relative isotope shifts for isotones in mercury and thallium. A marked similarity in the shifts was observed.
ASJC Scopus subject areas
- General Physics and Astronomy