Abstract

We present experimental and theoretical fully differential cross sections for single ionization by fast, 1-keV (v=8.6 a.u.) electron impact. The cross sections were measured using a momentum imaging technique for electrons and ions (reaction microscope), which covers a large fraction of the emission angles for emitted low-energy electrons (EeV) and a wide range of scattering angles. Therefore comprehensive data sets are obtained for ionizing collisions at small relative momentum and energy transfer from the projectile to the target system. The experimental data are compared with predictions from several state-of-the-art theoretical calculations. At this high impact energy the calculated cross section for electron emission out of the scattering plane appears to be particularly sensitive to the treatment of higher orders in the projectile-target interaction within perturbative models.

Department(s)

Physics

Sponsor(s)

National Science Foundation (U.S.)
Australian Research Council
Australian Partnership for Advanced Computing

Comments

This work was supported by the United States National Science Foundation under grants PHY-0244470 and PHY-0070872.

Keywords and Phrases

electron impact ionisation

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2008 American Physical Society (APS), All rights reserved.

Included in

Physics Commons

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