New Isomeric States in 197Bi

The high-spin states in 197Bi have been studied with the 187Re(16O,6n) reaction at 16O energies from 85 to 105 MeV. In-beam measurements of γ-ray excitation functions, γ-γ-t coincidences and γ-ray angular distributions were carried out with six BGO(AC)HPGe detectors and one intrinsic Ge planar detector. Eleven new transitions and three new isomers were observed, and a level scheme for 197Bi was established. Some differences between the present work and the previous results were found.