Relativistic calculations for trapped ions

We present recent results in the field of total binding energy calculations , Lande factors, quantum electrodynamics corrections and lifetime that are of interest for ion traps and ion sources. We describe in detail MCDF and R MBPT calculation of ionic binding energies, which are needed for the determ ination of atomic masses from highly charged ion measurements. We also show new results concerning Lande factor in 3-electron ions. Finally we describ e how relativistic calculations can help understand the physics of heavy io n production ion sources.