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Manuscript Title: Amplitudes for scattering of electrons by atomic systems including relativistic effects.
Authors: K. Bartschat, N.S. Scott
Program title: SCATTAMPREL
Catalogue identifier: ACFE_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 30(1983)369
Programming language: Fortran.
Computer: VAX 11/780.
Operating system: VMS V3.0.
RAM: 69K words
Word size: 64
Keywords: Atomic physics, Scattering, Reactance matrix, Transition matrix, Elastic, Inelastic, Superelastic, Scattering amplitudes, Electron, Heavy atoms, Noble gases, Relativistic effects, Spin-orbit interaction, Jlk-coupling scheme.
Classification: 2.4.

Nature of problem:
SCATTAMPREL calculates scattering amplitudes for the electron atom scattering process. The scattering amplitudes provide all possible information about the scattering process.

Solution method:
Given K- or T-matrices, calculated in the JlK-coupling scheme, SCATTAMPREL determines the corresponding scattering amplitudes using a relationship derived according to the method of Blatt and Biedenharn.

Restrictions:
In its present from SCATTAMPREL only calculates scattering amplitudes for electrons scattering from neutral atoms.

Running time:
Test run I took 2.38, test run II took 2.54 s execution time on the VAX 11/780.