We compare experimental fully differential three-dimensional angular distributions of electrons ionized from He in collision with ionic projectiles covering a broad range of perturbations (0.065 to 4.4). Even at very small perturbations clear signatures of higher-order contributions are observable. At large perturbations, such contributions become even dominant, especially those involving the post-collision interaction between the outgoing projectile and the ionized electron. Our results show that single ionization is not nearly as well understood as was assumed previously.
M. Schulz et al., "Fully Differential Three-Dimensional Angular Distributions of Electrons Ionized in Ion-Atom Collisions," AIP Conference Proceedings, vol. 730, no. 1, pp. 35-40, American Institute of Physics (AIP), Oct 2004.
The definitive version is available at http://dx.doi.org/10.1063/1.1824854
Atomic Processes in Plasmas: 14th APS Topical Conference on Atomic Processes in Plasmas (2004: Apr. 19-22, Santa Fe, NM)
Keywords and Phrases
Atom-Ion Collisions; Electron Impact Ionisation; Helium
Article - Conference proceedings
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