Test of internal-conversion theory with a measurement in 111Cd
1 Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
2 Petersburg Nuclear Physics Institute, Gatchina 188300, Russia
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Published online: 13 September 2017
We have measured the K-shell and total internal conversion coefficients for the 150.8-keV E3 transition in 111Cd: αK = 1.449(18) and αT = 2.217(26) respectively. The αK value agrees well with Dirac-Fock calculations, in which the effect of the K-shell atomic vacancy is included. It is consistent with our previous precise measurements of αK values, which cover a range of atomic numbers, and extends that range down to Z = 48. The αT measurement, however, disagrees by about two standard deviations from the calculated αT value, whether the atomic vacancy is included or not.
© The Authors, published by EDP Sciences, 2017
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