Abstract
IT was shown recently in this laboratory1 that the emission of positive ions from a heated Kunsman catalyst is accompanied by the evaporation of neutral atoms. In particular, a cæsium source heated in the neighbourhood of a sodium source deposited cæsium on the latter, so that when it was heated in turn, it emitted cæsium and not sodium ions. The number of cæsium ions emitted from the sodium source was large in this sense that it corresponded to the deposition on the superficial area of the source of a layer of cæsium a thousand atoms thick.
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References
Tyndall and Powell, Proc. Roy. Soc., A, 136, 145; 1932.
Lennard-Jones, Trans. Faraday Soc., 28, 333; 1932.
Powell and Brata, Proc. Roy. Soc., A, 138, 117; 1932.
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POWELL, C., BRATA, L. Positive Ion Emission from Oxide Catalysts. Nature 131, 168–169 (1933). https://doi.org/10.1038/131168a0
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DOI: https://doi.org/10.1038/131168a0
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