Lifetimes of the 246- and 46.7-keV Transitions inPo210

Abstract

The half-lives of the 1431- and 1478-keV levels in ${\mathrm{Po}}^{210}$ have been measured, the experimental values being 1.8±0.2 nsec and 29±6 nsec, respectively. These levels are depopulated by $E2\mathrm{}$ transitions of 246 and 46.7 keV whose transition probabilities are approximately three times greater than the single particle estimates.