Decay data measurements of 111In by 4πβ-γ coincidence spectrometry with a combination of a 4πβ counter and a Ge detector

The total internal conversion coefficients and the γ-intensities per decay of ¹¹¹In were determined directly from the slope-to-intercept ratio of the 4πβ-γ efficiency functions, which were measured by the 4πβ-γ coincidence spectrometry technique with a combination of a 4πβ gas flow counter and a Ge γ-ray spectrometer. The present results are in excellent agreement with Sparrmann's data, while there are considerable discrepancies as compared to the NDS evaluations.