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Photographic plates for the detection of mass rays

Published online by Cambridge University Press:  24 October 2008

F. W. Aston
F. W. Aston
Affiliation:
Trinity College.
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Extract

The sensitivity of photographic plates to mass rays bears practically no relation whatever to their sensitivity to light. A short account is given of tests on the relative merits of different brands of plates since the first experiments on positive ray analysis. The process of improving the qualities of plates by schumannising is discusseci and details are given of the process found likely to give the best results. Success cannot be guaranteed even with the most careful manipulation, but if achieved yields plates of outstanding value for use in such methods of analysis as the mass-spectrograph.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 22 , Issue 4 , March 1925 , pp. 548 - 554
Copyright
Copyright © Cambridge Philosophical Society 1925

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References

* Rays of Positive Electricity, 2nd ed., Fig. 16, p. 32.Google Scholar

† Loc. cit. p. 4.Google Scholar

‡ Baly's Spectroscopy, p. 359.Google Scholar

* Loc. cit. p. 5.Google Scholar

* Nature, 1922, vol. 109, p. 813.Google Scholar

† Phil. Mag., vol. 47, p. 392.CrossRefGoogle Scholar