Abstract
THE following method has been used successfully in the determination of some of the critical potentials of copper by electron impact. Essentially the method is the ordinary three electrode one in which an equipotential source of electrons, a gauze, and a receiving electrode are used. The gauze in this case was made of a copper strip 0.025 mm. thick, through which holes were bored. This gauze was heated electrically and served as a source of copper vapour, the electrons being accelerated to it at the same time.
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WAHLIN, H. Critical Potentials of Copper by Electron Impacts. Nature 120, 585 (1927). https://doi.org/10.1038/120585b0
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DOI: https://doi.org/10.1038/120585b0
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