Production of highly charged Ne ions by synchrotron radiation

▶ We have measured the Ne photoion charge state distributions after K-shell vacancy. ▶ By combining various theoretical and experimental data, wehave shown that multiple ionization of Ne atoms by 2000 eV electron impact occurs mainly via outer-shell ionization. ▶ Such an investigation can be employed to more complex systems as well allowing to obtain further knowledge on the several ionization pathways resulting in multiple electron removal in charged-particle interactions.