A method is presented to calculate the energy dependence of integral excitation cross sections for energies between 10 and 100 eV in the close coupling approximation. Especially the cross sections which are resolved with respect to the fine structure and the respective projection quantum numbers are obtained. The problem of the computing time for these systems has been solved by a Monte Carlo summation of the partial wave sum for the cross section. Results are presented for the alkalindash;mercury interaction.
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