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The R-matrix method for electron scattering from atoms and ions using the Dirac Hamiltonian has been programmed and a test case of electron scattering from Ne II is considered. The agreement for the total cross section between the relativistic calculation and previous non-relativistic calculations is excellent. The relativistic calculation enables cross sections for transitions between fine-structure levels to be obtained.
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Norrington et al. (1981) studied this question.
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