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The Period of Decay of Radium B and Radium C
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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 constanthas 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.
Cambridge University Press (CUP)
Title: The Period of Decay of Radium B and Radium C
Description:
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 constanthas 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.
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