Hoszowska, J.; Kheifets, Anatoli; Dousse, Jean-Claude; Bray, Igor; Cao, W.; Fennane, K.; Kayser, Y.; Kavcic, M.; Szlachetko, J.; Szlachetko, M.
The photon energy dependence of the double K-shell ionization of light atoms is reported. Experimental double-to-single photoionization cross section ratios for Mg, Al, Si and Ca were obtained from measurements of high-resolution x-ray emission spectra. The double photoionization (DPI) cross-sections for K-shell hollow atom production are compared to convergent close-coupling calculations (CCC) for neutral atoms and He-like ions. The relative importance of the initial-state and final-state...[Show more]
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