The photoabsorption spectra of lead and bismuth ions have been recorded using the dual laser plasma (DLP) technique in the photon energy range 30-66 eV. The experimental observations and theoretical calculations are focused on the 5d inner-shell excitations of the Hg I like ions of lead (Pb III) and bismuth (Bi IV). With the aid of Hartree-Fock calculations in the jj coupling scheme, we have identified over 30 new lines in both ions. As a result of the new measurements in Bi IV, the previously determined first ionization potential of Bi III has been increased from 45.32 eV to 45.36 eV.
|Journal||Journal of Physics B: Atomic, Molecular and Optical Physics|
|Publication status||Published - 28 Oct 2008|