Keywords and Phrases
CDW-EIS (Continuum distorted wave-Eikonal initial state)
"The measurement of fully differential cross sections (FDCS) for ion impact has become possible only within the past few years. These fully differential measurements have been made for single ionization of helium by impact of various charged particles. The FDCS experiments for C6+ single ionization of helium have yielded unique ring-shape structures in the-three-dimensional emission pattern of the ionized electron. The theoretical models that have been developed are fully quantum mechanical perturbative calculations. These theoretical models were applied to C6+, Auq+ (q=24 and 53) and proton impact ionization of helium. In the models, the collision is approximated as a three-body process (projectile, ion, ejected electron). For the proton impact, the agreement between the theory and experiment for intermediate-energy (less than 100 keV) proton collisions suggested that a three-body model may not be appropriate for those collision energies (especially, when considering that a proton with energy of 75 keV is equivalent to electron energy of 40 eV, which is only 15 eV above the ionization threshold for helium). These experiments further demonstrate the fact that the fundamental physics governing a simple collision process is still not well understood. Consequently, a complete four-body model was implemented that takes all two-particle Coulomb interactions (six in total) into account on an equal footing"--Abstract, page iv.
Madison, Don H.
Schulz, Michael, 1959-
Parris, Paul Ernest, 1954-
Robertson, D. G. C.
Ph. D. in Physics
National Science Foundation (U.S.)
University of Missouri--Rolla
Journal article titles appearing in thesis/dissertation
- Probing scattering wave functions close to the nucleus
- Fully differential cross sections for C6+ single ionization of helium
- Highly-charged particle impact ionization of He
- Initial-state correlation effects in low-energy proton impact ionization
- Precollision and postcollision electron-electron correlation effects for intermediate-energy proton-impact ionization of helium
x, 106 pages
© 2006 Lewis Matthew Foster, All rights reserved.
Dissertation - Restricted Access
Library of Congress Subject Headings
Electron impact ionization
Electrons -- Scattering
Print OCLC #
Electronic OCLC #
Link to Catalog Record
Foster, Lewis Matthew, "Single ionization of helium by charged particle impact" (2006). Doctoral Dissertations. 1681.