Coordinate-space approach to the bound-electron self-energy: Self-energy screening calculation

The self-energy screening correction is evaluated in a model in which the effect of the screening electron is represented as a first-order perturbation of the self-energy by an effective potential. The effective potential is the Coulomb potential of the spherically averaged charge density of the screening electron. We evaluate the energy shift due to a 1s_1/2, 2s_1/2, 2p_1/2, or 2p_3/2 electron screening a 1s_1/2, 2s_1/2, 2p_1/2, or 2p_3/2 electron, for nuclear charge Z in the range 5<=Z<=92. A detailed comparison with other calculations is made.