Gyromagnetic Ratio of the 3.5 ×10−9sec State and Other Angular Correlation Measurements ofTc99

Abstract

The gyromagnetic ratio of the 181-kev state of ${\mathrm{Tc}}^{99}$ is found to be +1.5±0.2 nuclear units. The angular correlation pattern obtained for the 740- and 181-kev pair of gamma rays is $W\left(\theta \right)=1+(0.067\mathrm{}\pm 0.004)P_2\left(cos\theta \right)+(0.020\mathrm{}\pm 0.005)P_4\left(cos\theta \right)$ and that of the 740- and 140-kev pair of gamma rays is $W\left(\theta \right)=1-(0.107\mathrm{}\pm 0.010)\times P_2\left(cos\theta \right)$.