Long-Lived Radioactivity ofEu152andEu154

Abstract

The long-lived activity of ${\mathrm{Eu}}^{152,154}$ has been examined by means of a thin-lens coincidence spectrometer and a crystal-summing spectrometer. Decay schemes are given for ${\mathrm{Eu}}^{152}$ and ${\mathrm{Eu}}^{154}$.