Theoretical study energy structures and radiative transition characteristics of highly charged Ni-like ions

Excitation energies, transition wavelengths and probabilities of the 3s23p63d10, 3s23p63d94l, 3s23p53d104l, 3s3p63d104l (l=s, p, d, f) states along the Ni-like sequence from Z=31 to 92 are calculated by using the Multi-configuration Dirac-Fock package GRASP92 and a newly developed radiative transition program REOS99. In the calculations, the correlation and relaxation effects are included systematically. Based on the calculations, all possible energy crossings among the level groups with the same parity and total angular momentum have been found. It shows that there are strong configuration interactions between those levels, which cause transition probabilities changes dramatically at many particular Z regions. (author)