Measurements of γ-γ and γ-electron directional correlations inSb.

The directional correlations of γ-γ and γ-electron cascades inSb are measured, in the decay ofTe. Both γ-γ and γ-electron directional correlation coefficients are determined for the cascades (energies in keV): 153.5-1212.7, 942.3-270.5, (976.2+979.3)-270.5, 1095.7-270.5 and 1136.8-270.5. For the cascades 912.6-1366.2, 2013.4-270.5 and 2089.9-270.5 γ-γ directional correlations are measured. The mixing ratios evaluated are: δ(M2/ E1, 153.5 keV)=0.0003±0.0023, δ(E2/ M1, 270.5 keV)=-0.39±0.29, δ(E2/ M1, 942.3 keV)= −0.26±0.12, δ(E3/ M2,1095.7 keV)=−0.01±0.07, and δ(M3/ E2,1212.7 keV) =0.004±0.007. The result is compared with theoretical predictions. [ABSTRACT FROM AUTHOR]