Abstract
THE investigations made up to now on the radioactivity of potassium have brought to light a very inhomogeneous β-radiation. The absorption coefficients derived by various workers vary from 27.2 to 11.2 cm.2/gm., and it is difficult from these discordant data to deduce its spectral distribution; all one can say is that the velocity of the harder component, derived from absorption measurements, is about 0.82c. On the other hand, the feeble activity of the element does not admit of our using any of the methods of magnetic analysis, which has already given us accurate measurements of stronger radioactive radiations.
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References
G. Occhialini, Rend. Lincei. In the press.
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BOCCIARELLI, D. A Hard Component of the β-Radiation of Potassium. Nature 128, 374–375 (1931). https://doi.org/10.1038/128374a0
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DOI: https://doi.org/10.1038/128374a0
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