Accession Number:

AD0625519

Title:

THE ELASTIC SCATTERING OF LOW ENERGY ELECTRONS FROM ATOMIC HELIUM.

Descriptive Note:

Doctoral thesis,

Corporate Author:

NAVAL ORDNANCE LAB CORONA CALIF

Personal Author(s):

• LaBahn,Raymond W.

Report Date:

1965-11-24

Pagination or Media Count:

140.0

Abstract:

Elastic electron scattering from atomic helium is examined within the framework of perturbed HartreeFock theory for the energy region from 0 to 50 eV. Interaction potentials are derived to describe the distortion induced into the target atom by the incident electron in the adiabatic approximation. Dynamical corrections to the adiabatic approximation are also examined and these incorporated into the formalism through a velocitydependent potential. The s-, p-, and d-wave scattering phase shifts were computed by numerical iteration of the resulting equations. These phase shifts are then used to compute the elastic scattering cross sections and the results compared with other recent theoretical predictions and experimental data. Author

Descriptors:

• *HELIUM
• ELASTIC SCATTERING
• ATOMS
• PERTURBATIONS
• POTENTIAL THEORY
• PHASE SHIFT CIRCUITS
• QUANTUM THEORY
• ITERATIONS
• WAVE FUNCTIONS

Subject Categories:

• Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE