DOUBLY, SINGLY DIFFERENTIAL AND TOTAL IONIZATION CROSS-SECTIONS OF RARE-GAS ATOMS

A variant of the Born approximation is used to calculate doubly, singl y differential and total ionization cross sections for the (e, 2e) int eraction between an electron and the rare-gas atoms neon, argon and kr ypton. The calculation is done for the ionization of the valence elect ron. This work is a continuation of a previous study of the alkali ato ms, and the purpose, as it was there, is to elucidate basic features. Comparison to experiment is made where possible.