Internal conversion coefficients for magnetic multipoles forz=39

Abstract

Results of new internal conversion calculations for two values of gamma-energy equal to 0.05 mc² and 0.15 mc² are presented and compared with earlier works ofRose, andSliv andBand in the case of Y⁸⁷. Matrix-elements for the surface current model and the no-penetration model are presented. Differences were found between present calculations and the earlier works fork equal to 0.05 mc² and in particular for theK shell. It is suggested that these differences are partly due to the screening model used and possibly also due to the mesh-size employed. New calculations are based on the non-relativistic Hartree-Fock potential in the Slater exchange approximation. The earlier work was based on the Thomas-Fermi-Dirac model. Our calculated eigenvalues agree extremely well with the experimental electron binding energies. A large number of points (2500) were used to minimize any errors due to mesh-size effects.