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An Investigation of the Upper Limit of the Thorium C + C″ β-ray Spectrum by means of the Wilson Cloud Chamber

Published online by Cambridge University Press:  24 October 2008

P. C. Ho
P. C. Ho
Affiliation:
Clare College
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Extract

Experiments on the β-ray spectrum of thorium C + C″ by the Wilson cloud chamber method were made. From a certain number of photographs taken, the upper limit of the continuous spectrum was found at 9250 Hρ and no β-particles of higher energy were observed. This value for the upper limit agrees fairly well with the result obtained by Henderson's recent experiments by the method of Geiger-Müller counter and focusing magnet.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 31 , Issue 1 , January 1935 , pp. 119 - 124
Copyright
Copyright © Cambridge Philosophical Society 1935

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References

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