Abstract: Small quantities of Ac in the presence of Th were determined by measuring AcC and ThC with an alpha analyzer and by determining Rn>s2/sup >>(/) and Po>s2/sup >>(/A) by counting retarded pulses with a luminescence counter. The existence of primary minerals saturated with actinium was confirmed, and secondary minerals with an increased actiniumradium ratio are discussed. (R.V.J.)
Publication Year: 1960
Publication Date: 1960-01-01
Language: en
Type: article
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