Nuclear orientation ofCd in Zn and Be and the quadrupole moment of the 245keV state.

The 48.7 mCd activity was implanted in Zn and Be single crystals which were soldered to the cold finger of a dilution refrigerator and kept below 0.2 K during implantation. Subsequent nuclear orientation experiments allowed the determination of the quadrupole interaction frequency v of the 11/2 isomeric state ofCd in Zn and Be as −139 (15) MHz and +43(16) MHz respectively. With these results we derive the quadrupole moment of the 5/2 245 keV level ofCd including sign as Q = +0.83(13) b and the sign of the electric field gradient for Cd in Be. The half-life ofCd was redetermined as 48.67 (6) m. [ABSTRACT FROM AUTHOR]