Nuclear orientation study of the decay of <img src="/fulltext-image.asp?format=htmlnonpaginated&src=C1101482P6842020_html\10751_2006_Article_BF02401221_TeX2GIFIE1.gif" border="0" alt=" $${}^{205}Bi\underline {Gd} $$ " />

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.