RECENTLY a powerful method for the determination of α-ray half-lives has been described1,2,3. The method consists essentially in counting the α-ray tracks produced in a photographic emulsion by the decaying nuclei. The nuclei are introduced into the plate by immersion into a solution of the element under investigation. Ilford C2 Nuclear Research plates are suitable.
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Bestenreiner and Broda, [Nature, 164, 658 (1949)].
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BESTENREINER, F., BRODA, E. Some More Lower Limits of Half-Lives for α-Decay. Nature 164, 919–920 (1949). https://doi.org/10.1038/164919a0
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