Alkali metal vapour generator
AssigneeU. S. Philips Corporation
InventorsJohannes Hendrikus Nicolaas Van Vucht, Jan Josephus Bernardus Fransen
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Abstract
For the introduction of an alkali metal vapour into an electric discharge tube, in particular for the vapour deposition of surfaces for photo-emission or secondary electron emission in such a tube, generators are used which comprise a filling which consists of at least one alkali metal alloyed with gold and/or silver, and/or copper alloyed with gold or silver.
Claims4
An alkali metal vapour generator comprising a material which consists essentially of at least one alkali metal and a further metal having a lower vapour pressure than said alkali metal, said further metal consisting essentially of at least one element selected from the group consisting of gold, silver and copper, with the proviso that said further metal include at least one of gold and silver.
Dependencies are inferred from the claim text.