Precise measurement of K and T for the 39.8-keV E3 transition in Rh103 : Test of internal-conversion theory Academic Article uri icon


  • 2018 American Physical Society. Neutron-activated sources of Ru103 and Pd103 both share the isomeric first-excited state in Rh103 as a daughter product. From independent measurements of both decays, we have measured the K shell and total internal-conversion coefficients, K and T, for the 39.8-keV E3 transition, which de-excites that state in Rh103, to be 141.1(23) and 1428(13), respectively. When compared with Dirac-Fock calculations, our new results disagree with the version of the theory that ignores the K-shell atomic vacancy, which is consistent with our conclusion drawn from a series of measurements on high multipolarity transitions in nuclei with higher Z. Calculations that include the atomic vacancy indicate that the transition actually has a small M4 component with mixing ratio =0.023(5).

published proceedings

  • Physical Review C

author list (cited authors)

  • Nica, N., Hardy, J. C., Iacob, V. E., Horvat, V., Park, H. I., Werke, T. A., ... Trzhaskovskaya, M. B.

publication date

  • January 1, 2018 11:11 AM