Partial and state-selective cross sections for multiple ionisation of rare-gas atoms by electron impact

Partial ionisation cross sections for single electron impact on rare-gas atoms (Ne, Kr and Xe) have been measured for charge states up to q=8. In addition, by using the translational energy spectroscopy technique (TES) the authors have determined state-selective cross sections for the production of doubly and triply charged neon ions in specific electronic states. The contributions of direct and inner-shell processes are discussed.