Decay properties of ${}_{}{}^{194,195,196}{}_{}{}^{}\mathrm{Pb}$ were studied using singles and coincident $\gamma$-ray spectroscopy. Sources were produced by the 95 MeV ${}_{}{}^{197}{}_{}{}^{}\mathrm{Au}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$,$\mathrm{xn}$) reactions. No direct evidence for the decay of a low-spin isomer of ${}_{}{}^{195}{}_{}{}^{}\mathrm{Pb}$ was observed. Several new levels were observed in ${}_{}{}^{195,196}{}_{}{}^{}\mathrm{Tl}$, and are interpreted in terms of a rotational model.

RADIOACTIVITY ${}_{}{}^{194,195,196}{}_{}{}^{}\mathrm{Pb}$ [from ${}_{}{}^{197}{}_{}{}^{}\mathrm{Au}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$,$\mathrm{xn}$), $E=95\mathrm{}$ MeV]. Measured $E_{\gamma }$, $I_{\gamma }$, $\gamma -\gamma$ coin; deduced $log\mathrm{ft}$. ${}_{}{}^{194,195,196}{}_{}{}^{}\mathrm{Pb}_{}^m{}_{}{}^{}$ deduced $t_{\frac{1}{2}}$. ${}_{}{}^{194,195,196}{}_{}{}^{}\mathrm{Tl}$ deduced levels, $J$, $\pi$, Nilsson configurations. Ge(Li) detectors.

• Received 18 January 1982

DOI:https://doi.org/10.1103/PhysRevC.25.2710