The properties of high-spin states in ${}_{}{}^{197}{}_{}{}^{}\mathrm{Bi}$ have been studied with the ${}_{}{}^{192}{}_{}{}^{}\mathrm{Pt}$${(}^{10}$B,5n${)}^{197}$Bi reaction at ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$ energies between 50 and 80 MeV. In-beam measurements of γ-ray excitations, γ-γ-t coincidences, γ-ray angular distributions, and pulsed-beam-γ timing were performed with Ge detectors to determine level energies, decay schemes, γ-ray multipolarities, $J^{\pi }$ assignments, and isomeric lifetimes. Yrast levels up to J=(33/2) were established including four isomers. The nuclear structure properties of ${}_{}{}^{197}{}_{}{}^{}\mathrm{Bi}$ are compared with systematic trends for the heavier odd-mass Bi isotopes.

• Received 19 August 1985

DOI:https://doi.org/10.1103/PhysRevC.33.130