Direct $\gamma$ and $\gamma -\gamma$ coincidence spectra of pure ${}^{209}$Tl and ${}^{213}$Bi sources obtained by radiochemical continuous separation were measured with coaxial and planar HPGe detectors. In ${}^{209}$Tl the half-life was measured, the $\beta$-decay energies and intensities of 11 $\gamma$ transitions were reported, and a new decay scheme was proposed. In ${}^{213}$Bi $\beta$ decay 22 transitions were observed, of which 18 were assigned to a new ${}^{213}$Po level scheme accounting for 9 excited states.

• Received 26 June 1997

DOI:https://doi.org/10.1103/PhysRevC.57.612