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Excitation energies and oscillator strengths for the 3p63d2D to 3p53d22P0,2D0,2F0transitions in Sc2+, Ti3+and V4+

1983; IOP Publishing; Volume: 16; Issue: 14 Linguagem: Inglês

10.1088/0022-3700/16/14/008

1747-3721

S. N. Tiwary, A E Kingston, A Hibbert,

Mass Spectrometry Techniques and Applications

Configuration interaction wavefunctions are used to evaluate the excitation energies and oscillator strengths of inner-shell transitions from the ground 3p63d2D state of the Sc2+, Ti3+ and V4+ ions of the potassium isoelectronic sequence to the 3p53d22P0, 2D0, 2F0 states. For Sc2+ and Ti3+, the strongest transitions correspond to upper states lying above the first ionisation threshold, a result predicted both by structure and scattering calculations. Similar configuration interaction calculations are also performed for the 3p53d4s states and the low-lying members of the 2P0 and 2F0 Rydberg series, because of the strong interactions between all of them. In V4+, the oscillator strengths of transitions to the 2F0 Rydberg series are considerably enhanced by these interactions. A similar enhancement of the transitions to 3p53d4s occurs whenever these levels lie below the highest of the 3p53d2 levels.