Systemic calculation and assessment of atomic properties of argon ions: I. Electron impact excitation

Based on quasi-relativistic distorted wave Born approximation with exchange, the electron impact excitation cross sections between configurations of H-, He-, and Li-like argon ion were calculated systemically and compared with previous theoretical predictions. Most of the present calculated results agreed within deviation of 10% with the theoretical results of full relativistic distorted wave method, and agreed in general within deviation of 15% with those of closing coupling methods except that in the low incident energy, there were relatively larger deviations due to the present calculation considering only the direct excitation processes while the resonance effects were not taken into account. The codes presented in this paper can conveniently provide a large amount of atomic data for p