Abstract
RECENT progress in the field of thermionic emitters has largely been directed towards obtaining continuous current densities higher than those which can be obtained from oxide cathodes with reasonable lives. Examples of this trend are the L cathode1, the impregnated tungsten cathode2 and the moulded nickel–barium carbonate layer cathode3.
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References
Lemmens, Jansen and Loosjes, Philips Tech. Rev., 11, 341 (1950).
Levi, Record of Inst. Radio Eng. Convention, 1953, Pt. 6, 40 (1953).
MacNair, Hannay and Lynch, J. App. Phys., 24, 1335 (1953).
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BECK, A., CUTTING, A., BRISBANE, A. et al. A New Type of Diffusion Cathode. Nature 174, 1010–1011 (1954). https://doi.org/10.1038/1741010a0
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DOI: https://doi.org/10.1038/1741010a0
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