The Study of 5s$^{\mathrm{2}}$5p$^{\mathrm{3}}$- 5s5p$^{\mathrm{4}}$ Transitions in Sb-Like Cerium Ion: Ce VIII

Seven-times ionized cerium ion has Sb I-like structure, and 5s$^{\mathrm{2}}$5p$^{\mathrm{3}}$ $^{\mathrm{4}}$S$_{\mathrm{3/2}}$ as the ground state. The 5s$^{\mathrm{2}}$5p$^{\mathrm{3}}$- 5s5p$^{\mathrm{4}}$ transitions transition array was studied using observed cerium spectrum. This spectrum was recorded on a 3-m normal incidence vacuum spectrograph at Antigonish lab (Canada). In this study all the energy levels of the ground configuration was established using the Visual Line-and-Level Identification Program (IDEN2). This analysis was theoretically supported by relativistic (multiconfiguration Dirac-Hartree-Fock) and pseudo relativistic (Hartree-Fock with relativistic correction) method followed by configuration interaction. Along with the energy levels, transition probabilities, oscillator strength and lifetimes were also calculated. The observed levels then optimized with the computer code LOPT.