4D inner shell excitations of I, Ba, and La in the 70-125 eV region

The photabsorption spectrum of I IV-VI, Ba IV-VI and La V-VIII have been recorded using the dual laser produced plasma technique. At lower energies, the barium and lanthanum spectra are dominated by 4d→5p transitions in the regions 76-79 eV and 84-94 eV respectively, whereas for iodine the 4d→nf transitions are dominant between 75-105 eV. For each spectrum, the transitions were identified with the aid of multiconfiguration Hartree-Fock calculations.

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