Calculation of the photoionization cross sections for the ions of the cesium isoelectronic sequence by the Dirac-Fock method

The photoionization cross sections for the ground and same excited states of 10 ions cesium isoelectronic sequence from Ba$^+$ through Tb$^{(10+)}$ are calculated by the relativistic Dirac-Fock self-consistent field method. The energy dependence of the photoionization cross sections and the changes in the threhold values along the isoelectronic sequence are considered. Along with the total photoionization cross sections, the asymmetry parameter in the angular distributionof photoelectrons and the degree of their polarization ara also colculated.