Gamma-Gamma Directional Correlations in the Decay ofTb160

12 April 1965

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 138 (1B) , B33-B37
https://doi.org/10.1103/physrev.138.b33

Abstract

Gamma-gamma directional correlation measurements have been made in the decay of

{Tb}^{160}

{Dy}^{160}

, for the cascades, 87-197 keV, 87-877 keV, 87-960 keV, 87-1175 keV, 197-680 keV, 197-1250 keV, and 298-877 keV. The corresponding angular correlation functions obtained are as follows:

W {(θ)}_{87 - 197 keV} = 1 + (0.100 \pm 0.001) P_{2} (cos θ) + (0.0087 \pm 0.001) P_{4} (cos θ) .

W {(θ)}_{87 - 877 keV} = 1 - (0.092 \pm 0.001) P_{2} (cos θ) + (0.300 \pm 0.01) P_{4} (cos θ) .

W {(θ)}_{87 - 960 keV} = 1 - (0.07 \pm 0.003) P_{2} (cos θ) + (0.0009 \pm 0.001) P_{4} (cos θ) .

W {(θ)}_{87 - 1175 keV} = 1 + (0.133 \pm 0.04) P_{2} (cos θ) + (0.0700 \pm 0.012) P_{4} (cos θ) .

W {(θ)}_{197 - 680 keV} = 1 + (0.200 \pm 0.002) P_{2} (cos θ) + (0.089 \pm 0.001) P_{4} (cos θ) .

W {(θ)}_{197 - 1250 keV} = 1 + (0.09 \pm 0.001) P_{2} (cos θ) - (0.152 \pm 0.002) P_{4} (cos θ) .

W {(θ)}_{298 - 877 keV} = 1 - (0.126 \pm 0.02) P_{2} (cos θ) - (0.008 \pm 0.01) P_{4} (cos θ) .

Keywords

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