Si XI K-shell energy levels and radiative rates

These accurate atomic data are also needed for line identifications and spectroscopic diagnostic of plasmas in laboratory generated by laser or beam-foil method.The atomic code Flexible Atomic Code (FAC) has been used to calculate these data.

Relativistic effects and configuration interactions are taken into account in calculations.The K-shell transitions among the configurations of 1s^2^2s^2^, 1s^2^2s2p, 1s^2^2p^2^, 1s^2^2sn'l', 1s^2^2pn'l', 1s2s^2^2p, 1s2s2p^2^, 1s2p^3^, 1s2s2pn'l' and 1s2p^2^n'l', n'<=4, l'<=n' for beryllium-like Si XI have been calculated. The K-shell energy levels, wavelengths, radiative rates and oscillator strengths for Si XI are reported.