Abstract
CARBON monoxide is one of the more common residual gases found in radio valves and the like, because carbon and oxygen are both present as impurities in the metals used for electrodes. After these impurities have diffused separately through the metal, they combine at the free surface and are desorbed as carbon monoxide1. Wagener2, Morrison and Zetterstrom3 and, recently, della Porta4, have shown that the amount of carbon monoxide which is taken up by a barium getter film is much less than that to be expected if all of the barium reacted. This limitation is so marked that the term ‘poisoning’ has been used by way of description.
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References
Smithells, C. J., and Ransley, C. E., Proc. Roy. Soc., A, 155, 195 (1936).
Wagener, S., Vacuum, 3, 11 (1953).
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della Porta, P., Vacuum, 4, 284 (1954) (published Feb. 1957).
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Bloomer, R. N., Brit. J. App. Phys. (in the press).
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Bloomer, R. N., Brit. J. App. Phys., 8, 40 (1957).
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BLOOMER, R. Reaction of Carbon Monoxide with Evaporated Barium Films. Nature 180, 249–250 (1957). https://doi.org/10.1038/180249a0
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DOI: https://doi.org/10.1038/180249a0
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