Abstract

The structure of hydrogenic states, or low lying Rydberg states, in highly-ionized beryllium-like atoms is influenced by the effects of atomic core polarization as well as configuration interaction. Measurements have been made, using fast-ion spectroscopy, of the resolved structure of hydrogenic transitions in S XIII and Cl XIV involving 1s 22s nl and 1s 22p nl states with n = 6–11. Relativistic MCHF calculations are compared with the observed structures.

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