Decay ofTb16065(71 Day)

Abstract

By means of 180° internal-conversion electron spectrometers and the scintillation coincidence spectrometer, the radiations of ${}_{65}{}^{}{}_{}{}^{}\mathrm{Tb}_{}^{160}{}_{}{}^{}$ (71 day) have been studied. In addition to many of the previously reported transitions in ${\mathrm{Dy}}^{160}$, three new gamma rays of 0.759, 1.17, and 1.26 Mev are observed. By using the energy values determined from the internal conversion studies together with beta-gamma and gamma-gamma coincidence results a decay scheme is deduced which is consistent with the experiments discussed.