Synopsis Theoretical transition energies and probabilities for He-, Li and Be-like Praseodymium ions are calcu-lated in the framework of the multi-configuration Dirac-Fock method (MCDF), including QED corrections. These calculated values are compared to recent experimental data obtained in the Livermore SuperEBIT electron beam ion trap facility . Highly-charged ions constitute a testbed for the understanding of the electronic structure of matter, because they can be considered a sub-class of atoms in which the basic physical pa-rameters take on extreme values. In the present ab initio theoretical work we start from a Dirac-Fock calculation with Breit interaction included self-consistently. Higher-order retardation and one-electron radiative cor-rections are also included, and the screening of the self-energy is evaluated using the Welton ap
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