The Emission of Positive Ions from Tungsten and Molybdenum
- 15 February 1930
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 35 (4) , 381-395
- https://doi.org/10.1103/physrev.35.381
Abstract
An examination of the positive ion emission from tungsten and molybdenum has been made in which it was sought to determine the following points: (1) The nature of the ions emitted at various temperatures; (2) the temperature variation of the positive ion current; (3) the theory of positive ion emission with regard to where and how the ions are formed; (4) the positive ion work function for these metals; (5) whether the work function, determined by experiment, checks with that calculated by a simple cyclic process involving the thermionic work function, the ionizing potential, and the latent heat of evaporation of the metal.Keywords
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