Investigation of (E, 2E) Collisions and Related Phenomena

<p>In this thesis I investigate (e, 2e) processes, or electron impact ionization, using several theoretical methods. I first examine the problem using the Born approximations, particularly the Distorted Wave Born Approximation (DWBA), focusing on the underlying processes that dominate for ionization of the 2<em>p</em> state of Argon and Magnesium. I investigate as well the ionization of helium and hydrogen and use the simplicity of the approximation to probe the incident particle effects on the Helium cross section. In both cases the results are compared with experiment. I also produce cross section results for ions near threshold, a regime that is currently under experimental investigation. In the second part of this thesis, I develop an <em>ab initio</em> method for doing these calculations called the X2e method. This is described in full, including derivation of the important features of the method. Preliminary results are presented in comparison with established theory.</p>

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date.available

2008

Author dc:creator

• Martinez, Jason Manuel

Contributors dc:contributor

• Colm T. Whelan
• John A. Adam
• Alexander L. Godunov
• Mark D. Havey
• J. Wallace Van Orden

• Electron impact ionization
• Electron scattering
• Ionization
• Atomic, Molecular and Optical Physics

Statement dc:rights

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Identifier

9780549739074

OAI identifier oai:identifier

oai:digitalcommons.odu.edu:physics_etds-1063