“…This finding was confirmed by Walen (19) in France. Karlik and Bernert also reported the observation of alpha particles which they attributed to the rate beta branching of the A-products in the thorium (20) and actinium series (21). The beta branching of thorium-A was reported to be 1.35 X 10~2% and the beta branching of actinium-A was reported to be 5 X 10~4%.…”
Section: Nuclear Properties Of Astatine Isotopesmentioning
“…This finding was confirmed by Walen (19) in France. Karlik and Bernert also reported the observation of alpha particles which they attributed to the rate beta branching of the A-products in the thorium (20) and actinium series (21). The beta branching of thorium-A was reported to be 1.35 X 10~2% and the beta branching of actinium-A was reported to be 5 X 10~4%.…”
Section: Nuclear Properties Of Astatine Isotopesmentioning
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