Abstract

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.

Meeting Name

Atomic Processes in Plasmas: 14th APS Topical Conference on Atomic Processes in Plasmas (2004: Apr. 19-22, Santa Fe, NM)

Department(s)

Physics

Keywords and Phrases

Atom-Ion Collisions; Electron Impact Ionisation; Helium

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2004 American Institute of Physics (AIP), All rights reserved.

Included in

Physics Commons

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