Electron Emission of the Cathode of an Arc

Details Electron Emission of the Cathode of an Arc Electron Emission of the Cathode of an Arc

Apr 1936

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1936natur.137..580d&link_type=abstract

Nature, Volume 137, Issue 3466, pp. 580 (1936).

Physics

9

Scientific paper

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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