Cross sections for K-shell ionization

An Argentinean group has reported the experimental determination of cross sections for K-shell ionization by electron impact for Al, Si, and Ti and their oxides deposited on carbon substrates, for incident energies between 2.5 and 25 keV. For more information, see the paper, "Experimental determination of cross sections for K-shell ionization by electron impact for C, O, Al, Si, and Ti", S. P. Limandri et al., Phys. Rev. A86, 042701 (2012).