The K-conversion coefficients of γ-rays above 800 keV from 182Ta decay

The relative intensities of the K-shell internal conversion electrons above 800 keV from the decay of 182 Ta(115 d) have been studied. These measurements were made with a π √2 iron-free, magnetic, electron spectrometer with observed resolutions of 0.075 to 0.20%. Relative γ-ray intensities were also determined on Ge(Li) detector systems. These data were combined to obtain K-shell conversion coefficients for 21 transitions. The estimated uncertainties are as small as 0.5% for the relative electron intensities and 0.8% for the conversion coefficients. Multipole mixing ratios are determined for a number of the transitions.