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.