Nuclear orientation study of the decay of $${}^{205}Bi\underline {Gd} $$

Abstract

Angular distribution of gamma radiation from the decay of205Bi oriented at low temperatures in gadolinium host was investigated. The orientation parameters B2 and B4 were determined. The spin 9/2 could be uniquely assigned to the positive-parity level at 2252.3 keV. No attenuation was observed for the isomeric level at 1013.8 keV. Seven new values of multipole mixing ratios of E2/M1 gammatransitions in205Pb were determined, two earlier measured values were confirmed.