Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-24T13:20:13.147Z Has data issue: false hasContentIssue false
  • English
  • Français

The Period of Decay of Radium B and Radium C

Published online by Cambridge University Press:  24 October 2008

P. Bracelin
Get access Rights & Permissions [Opens in a new window]

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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