Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] aagw_v1_0.gz(24 Kbytes)|
|Manuscript Title: Electron impact excitation cross sections.|
|Authors: M.R.C. McDowell, L. Morgan, V.P. Myerscough|
|Program title: POLORB|
|Catalogue identifier: AAGW_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 7(1974)38|
|Programming language: Fortran.|
|Computer: CDC 7600.|
|Operating system: SCOPE, MAXIMOP.|
|RAM: 31K words|
|Word size: 60|
|Keywords: Atomic physics, Scattering, Electron, Hydrogen-like ion, Distorted wave, Coulomb born, Born oppenheimer, Excitation, S-states, Numerov.|
Nature of problem:
Determines total and differential cross sections for the electron impact induced 1s - ns transitions in hydrogrnic systems in a number of approximations.
A partial wave expansion is used. The radial scattering functions are obtained by a non-iterative method and normalized by matching to a JWKB solution.
Only 1s-> ns transitions are treated and without modification to COEFFS, n<=5. An extension to 1s-> np transitions is in preparation.
DWPO calculations take up to 60 s CPU time on a CDC 6600, depending on the number of partial waves required for convergence. Born, Born- Oppenheimer, CB1 and CBO1 calculations require less than 5 s per case.
|Disclaimer | ScienceDirect | CPC Journal | CPC | QUB|