Abstract
IN the carbon- and tungsten-arc the electrons are in most cases emitted thermionically by the cathode, while in the mercury-arc (with mercury cathode) the cathode current is assumed to be due to the emission of electrons from a cold cathode by the high field before the cathode (field current). This high field is generated by the space charge of the positive ions flowing to the cathode.
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Z. Phys., 86, 451 and 821 (1933); 92, 728 (1934).
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DRUYVESTEYN, M. Electron Emission of the Cathode of an Arc. Nature 137, 580 (1936). https://doi.org/10.1038/137580a0
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DOI: https://doi.org/10.1038/137580a0
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