We describe the computer codes, developed at Vilnius University, for the
calculation of electron-impact excitation cross sections, collision strengths,
and excitation rates in the plane-wave Born approximation. These codes utilize
the multireference atomic wavefunctions which are also adopted to calculate
radiative transition parameters of complex many-electron ions. This leads to
consistent data sets suitable in plasma modelling codes. Two versions of
electron scattering codes are considered in the present work, both of them
employing configuration interaction method for inclusion of correlation effects
and Breit-Pauli approximation to account for relativistic effects. These
versions differ only by one-electron radial orbitals, where the first one
employs the non-relativistic numerical radial orbitals, while another version
uses the quasirelativistic radial orbitals. The accuracy of produced results is
assessed by comparing radiative transition and electron-impact excitation data
for neutral hydrogen, helium and lithium atoms as well as highly-charged
tungsten ions with theoretical and experimental data available from other
sources.Comment: Lithuan. J. Physic