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Positive-Ion Emission, a Neglected Phenomenon

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1 Author(s)
W. C. White ; General Electric Research Laboratory, Schenectady, N.Y.

About fifty years ago, much scientific work was done on the passage of electricity in air between two electrodes, one of which was red hot. A little later, as an outgrowth from these experiments, electron emission in a high vacuum proved to be of such interest and promise in the new but expanding science of electronics that the phenomenon in air has been all but forgotten. However, a new, interesting, and useful leak detector has been developed from this neglected effect, and there is reason to believe that positive-ion emission may well be of importance for other applications.

Published in:

Proceedings of the IRE  (Volume:38 ,  Issue: 8 )