Nuclear Orientation ofSb125

The anisotropies of the 176-, 379-, 426-, 598- plus 604-, 633-, and 668-keV $\gamma$ rays from oriented ${}_{}{}^{125}{}_{}{}^{}\mathrm{Sb}$ have been observed. The results corroborate the spin assignment of $\frac{5}{2}$ to the 668-keV level, $\frac{7}{2}$ to the 633-keV level, and $\frac{9}{2}$ to the 321-keV level. The following mixing parameters $\delta \left(\frac{E2\mathrm{}}{M1\mathrm{}}\right)$ were found: 633-keV $\gamma$ ray, $\delta =+0.327\mathrm{}\pm 0.004 or +32.4_{-3.5\mathrm{}}^{}{}_{}{}^{+4.5\mathrm{}}$; 426-keV $\gamma$ ray, $\delta =-0.512\mathrm{}\pm 0.025 or -1.05\mathrm{}\pm 0.05$; 176-keV $\gamma$ ray, $-1.49\mathrm{}\le \delta \le -0.570\mathrm{}$. The data suggest that the $\beta$ feeds to the 640-, 633-, and 321-keV levels are mostly $L=1\mathrm{}$. The average magnetic hyperfine energy of ${}_{}{}^{125}{}_{}{}^{}\mathrm{Sb}$ in iron was found to be $(572\mathrm{}\pm 3){\mu }_N$ kG by simultaneously orienting ${}_{}{}^{60}{}_{}{}^{}\mathrm{Co}$ and ${}_{}{}^{125}{}_{}{}^{}\mathrm{Sb}$.