Subbarrier conversion in Te-125(45+)

We discuss the process of resonant subbarrier internal conversion of gamma rays, where the converted electron is transferred to one of the atomic orbi tals. For the first time we study how this process is affected by residual interactions: the splitting of the atomic terms in the total angular moment um of the atom, configuration mixing, and the magnetic interaction between the electrons of the atom. The calculations are done by the relativistic mu lticonfiguration Dirac-Fock method with allowance for the Breit interaction for the M1 transition with an energy of 35 492 eV in multiply charged ions of Te-125. We show that allowing for the residual interaction is obligator y if we want to calculate the conversion rate in the vicinity of a resonanc e correctly. (C) 1999 American Institute of Physics. [S1063-7761(99)00511-9 ].