L-subshell ionization cross sections of Lu, W, Au, Tl, Pb, Th and U by protons of 0.5—0.9 MeV energy

The L-subshell ionization cross sections for 0.5—0.9 MeV protons on thin Lu, W, Au, Tl, Pb, Th and U targets were extracted from the L X-ray production cross sections. The experimental cross sections were compared with other recent experimental data as well as with the results predicted by the plane wave Born approximation (PWBA) and by the perturbed stationary state theory (PSS) with the relativistic and Coulomb deflection corrections included (CPSSR). Experimental data are, on the average, still about 30% higher than those predicted by the CPSSR theory.