L-subshell ionization studies of Au for alpha -particle and lithium-ion bombardment

Abstract

L-subshell ionization of Au has been investigated for alpha -particle and lithium-ion bombardments with energies 0.54-1.74 MeV u-1 and 0.65-1.44 MeV u-1, respectively. Comparison of experimental X-ray production cross sections with the predictions of the ECPSSR and SCA theories shows reasonably good agreement for Lalpha and Lbeta X-rays, whereas for Lgamma and Lgamma 1+5 the ECPSSR theory underestimates the cross sections by about 60% for both alpha -particle and lithium-ion impact, and the SCA theory agrees reasonably well. The ECPSSR theory underestimates the L1- and L2-subshell ionization cross sections and gives good agreement for the L3-subshell, whereas the SCA theory overestimates the L3-subshell ionization cross sections and gives good agreement for L1 and L2. The experimental data for the total-ionization cross sections are within 25% of the predictions of both the theories.