The Period of Decay of Radium B and Radium C
Published online by Cambridge University Press: 24 October 2008
Extract
Measurements of the saturation currents produced between two parallel plates by a source of radium C of carefully tested purity have been performed by an accurate galvanometer method. From the results a transformation constant
has been assigned to radium C corresponding to a half-value period of 19·72±·04 minutes.
Similar measurements with radium active deposit have enabled a value to be estimated for the period of radium B between 26·7 and 26·8 minutes, which is the limit of accuracy of the experimental data.
- Type
- Research Article
- Information
- Mathematical Proceedings of the Cambridge Philosophical Society , Volume 23 , Issue 2 , April 1926 , pp. 150 - 154
- Copyright
- Copyright © Cambridge Philosophical Society 1926
References
* Lerch, F. v., Ann. der Phys. vol. 20, 2, pp. 345–54 (06, 1906).CrossRefGoogle Scholar
† Cf. Rutherford, , Radioactive Substances and their Radiations, p. 498.Google Scholar
* Lerch, F. v., loc. cit.Google Scholar
† Mme Curie, Radioactivité, vol. 2, p. 322 (1910).Google Scholar
* Lawson, and Hess, , Wien. Ber. 2 A, 127, pp. 626–7 (1918).Google Scholar
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