Collision strengths for electron excitation of highly ionized, complex atoms

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Abstract
Using atomic structure and atomic collision programs developed, respectively, by Eissner and Nussbaumer (1969, 1970) and Eissner (1970), collision strengths have been computed for transitions, produced by electron impact, between terms of the following configurations of the following ions: N V, Si XII: 1s22s, 2p, 3s, 3p, 3d; Fe XIII: 3s2 3p2, 3s 3p3, 3s2 3p 3d; Fe XIV: 3s2 3p, 3s 3p2, 3s2 3d; Fe XV: 3s2, 3s 3p, 3p2, 3s 3d; Fe XVII: 2p6, 2p5 3s, 3p, 3d. The calculations are in a configuration interaction representation and in LS coupling. The collision problem is solved by the distorted wave approximation and the results obtained are found to be in good agreement with the results of close coupling calculations, where such a comparison can be made.

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