Precise measurement of alpha-K for the 65.7-keV M4 transition in 119Sn: Extended test of internal-conversion theory

Authors :: Nica, N.
Hardy, J. C.
Iacob, V. E.
Bencomo, M.
Horvat, V.
Park, H. I.
Maguire, M.
Miller, S.
Trzhaskovskaya, M. B.
Publication Year :: 2013
Abstract: We have measured the K-shell internal conversion coefficient, alpha-K, for the 65.7-keV M4 transition in 119Sn to be 1621(25). This result agrees well with Dirac-Fock calculations in which the effect of the K-shell atomic vacancy is accounted for, and disagrees with calculations in which the vacancy is ignored. This extends our precision tests of theory to Z = 50, the lowest Z yet measured.<br />Comment: 10 pages, 7 figures

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