Abstract

We investigate the angular distribution parameters and partial photoionization cross sections of the atomic barium mainline and the , and satellites in the region of the excitations. Our measurements cover the photon energy range from 19.0 eV to 23.0 eV. They are in good qualitative agreement with early experimental investigations of these partial cross sections but were recorded with a significantly improved monochromator resolution detailing the complicated resonance structure in this energy regime. The angular distribution measurements reported here are a significant improvement over the only other angular distribution measurement to date in this resonance region.

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