Predictions of multiple K- and L-shell ionization by alpha-particle impact on atoms with Z = 10 to 100

The peaked binary-encounter approximation is used to compute cross sections for removing one or more electrons from K- and L-shells of atomic targets with Z = 10, 15, 20, 25, 30, 40, 60, 80 and 100 by bombardment with alpha particles. The cross sections, σ_{1K, nL} and σ_{2K, nL}, are plotted over a range of alpha energies in the MeV region near the peaks of these cross sections. The relative magnitudes of the σ_{1K, nL} and σ_{2K, nL} cross sections are similar. Estimates of multiple-ionization cross sections for other projectiles may be determined in some instances by means of the z² scaling law for the ionization probability.