Precise measurement of αK and αT for the 150.8-keV E3 transition in Cd111: Test of internal-conversion theory
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© 2016 American Physical Society. We have measured the K-shell and total internal-conversion coefficients, αK and αT, for the 150.8-keV E3 transition in Cd111 to be 1.449(18) and 2.217(26), respectively. The αK result agrees well with Dirac-Fock calculations in which the effect of the K-shell atomic vacancy is accounted for; it extends our precision tests of αK calculations to Z=48, the lowest Z yet measured. However, the result for αT disagrees by about two standard deviations from the calculated αT value, whether or not the atomic vacancy is included.
author list (cited authors)
Nica, N., Hardy, J. C., Iacob, V. E., Werke, T. A., Folden, C. M., Pineda, L., & Trzhaskovskaya, M. B.