Calculation of dielectronic recombination rate coefficients of Kα- and Kβ-type decays of Ni27+

Abstract

The dielectronic recombination(DR) rate coefficients are investigated for low-density hydrogen-like Ni27+ at plasma temperatures 0.1—10 keV by the wavefunction from Hartree-Fock with relativistic Corrections(HFR) method. Based on the KLn and KMn resonance excitation, the partial DR rate coefficients of the DR processes are calculated by taking into account the important radiative decay tunnel including the Kα- and Kβ-type decays. It was found that the Kα- and Kβ-type radiative decays are important in the DR processes of hydrogen-like Ni27+. The partial DR rate coefficient of Kα processes is much larger than that of Kβ.