Physical Sciences and Mathematics Commons^™

Doubly Differential Single And Multiple Ionization Of Krypton By Electron Impact, O. G. De Lucio, Jared M. Gavin, Robert D. Dubois

Physics Faculty Research & Creative Works

Differential measurements for single and multiple ionization of Kr by 240 and 500 eV electron impact are presented. Using a pulsed extraction field, Kr+, Kr2+, and Kr3+ ions were measured in coincidence with scattered electrons for energy losses up to 120 eV and scattering angles between 16° and 90°. Scaling properties of the doubly differential cross sections (DDCS) are investigated as a function of energy loss, scattering angle, and momentum transfer. It is shown that scaling the DDCS as outlined by Kim and Inokuti and plotting them versus a parameter consisting of the momentum transfer divided by the square root …