Atomic multiconfiguration calculations of E1, E2, and M1 transitions for Kr VI and Rn VI

By employing the general-purpose relativistic atomic structure package (GRASP) based on a fully relativistic multiconfiguration Dirac–Fock (MCDF) method and the pseudo-relativisitic Hartree–Fock code including superposition of configurations with relativistic corrections, we have reported the energy levels and transition parameters such as wavelengths, transition rates, and logarithmic weighted oscillator strengths for allowed transition (electric dipole, E1), and forbidden transitions (electric quadrupole, E2, and magnetic dipole, M1) for five times ionized krypton (Kr VI, Z = 36), and radon (Rn VI, Z = 86) in this work. The calculations agree very well with the existing data. Such a data set for the levels of some excited configurations and their radiative properties in Rn VI are reported for the first time to our knowledge.