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Manuscript Title: A Breit-Pauli distorted wave implementation for AUTOSTRUCTURE
Authors: N. R. Badnell
Program title: AUTOSTRUCTURE
Catalogue identifier: AEIV_v1_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 182(2011)1528
Programming language: Fortran 77/95.
Computer: General.
Operating system: Unix.
Has the code been vectorised or parallelized?: Yes, a parallel version, with MPI directives, is included in the distribution.
RAM: From several kbytes to several Gbytes
Keywords: Atomic collisions, electron-impact excitation, distorted wave method.
PACS: 34.80.Kw.
Classification: 2, 2.4.

Nature of problem:
Collision strengths for the electron-impact excitation of atomic ions are calculated using a Breit-Pauli distorted wave approach with the optional inclusion of two-body non-fine-structure and fine-structure interactions.

Solution method:
General multi-configuration Breit-Pauli atomic structure. A jK-coupling partial wave expansion of the collision problem. Slater state angular algebra. Various model potential non-relativistic or kappa-averaged relativistic radial orbital solutions - the continuum distorted wave orbitals are not required to be orthogonal to the bound.

Additional comments:
Documentation is provided in the distribution file along with the test-case.

Running time:
From a few seconds to a few hours