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We consider one-loop self-energy and vacuum polarization radiativecorrections to the shift of atomic energy level due to finite nuclear size.Analytic expressions for vacuum polarization corrections are derived. For theself-energy of p1/2 and p3/2 states in addition to already known terms wederive next-to-leading nonlogarithmic Z\alpha-terms. Together withcontributions obtained earlier the terms derived in the present work giveexplicit analytic expressions for s1/2 and p1/2 corrections which agree withresults of previous numerical calculations up to Z=100 (Z is the nuclear chargenumber). We also show that the finite nuclear size radiative correction for ap3/2 state is not small compared to the similar correction for a p1/2 state atleast for small Z.Comment: 12 pages, 7 figure

physical review. a, atomic, molecular, and optical physics/physical review, a, atomic, molecular, and optical physics

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Finite-nuclear-size effect on the Lamb shift ofs1/2,p1/2