Decay of 13-HourRe182

Abstract

An electron- and gamma-spectroscopic study of the levels of ${\mathrm{W}}^{182}$ populated by the 13-hour electron-capturing isomer ${\mathrm{Re}}^{182}$ has been made. The levels observed support previous studies on the ${\mathrm{W}}^{182}$ levels as observed in ${\mathrm{Ta}}^{182}$ decay. Evidence for weakly populated levels around 2 Mev is reported, which indicates that the decay energy of the isomer is greater than 2 Mev. On the basis of the spins and parities of the levels populated, the isomer is assigned spin 3, negative parity.