SiIX K-shell energy levels and transitions

Relative large discrepancies in the existing atomic data have impeded this progress. We present the accurate SiIX K-shell transition data, including K-shell energy levels, wavelengths, radiative rates, and oscillator strengths.

The flexible atomic code (FAC), which is a fully relativistic atomic code with configuration interaction (CI) included, was employed to calculate these data. To investigate the CI effects, calculations with different configurations included were carried out. The K-shell atomic data of SiIX transitions between 1s^2^2s^2^2p^2^, 1s^2^2s2p^3^, 1s^2^2p^4^, 1s2s^2^2p^3^, 1s2s2p^4^, and 1s2p^5^ are reported.