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Physical Review C
We have measured the K-shell internal conversion coefficient, αK , for the 65.7-keV M 4 transition in 119 Sn 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. PACS numbers: 23.20.Nx, 27.60.+j I.doi:10.1103/physrevc.89.014303 fatcat:wkpqn7z6rrf5rfybogsajhjk6u