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- W158759747 abstract "Methods for the production of a pressure 10-9 mm Hg in metal vacuum chambers of volumes greater than 1000 l. are described. The following pumping methods are theoretically analyzed: mechanical pumps, getter pumps, ion-getter pumps, diffusion pump-trap systems, and cryogenic pumps. Experimental results on these pumping methods are presented; the conclusion of theory and experiment is that the best method for pumping large chambers to 10-9 mm Hg is the diffusion pump and trap system. Promising supplementary methods are cryogenic pumping and getter pumping.Seals for use in large metal systems are described; the seals include metal gasket compression seals useful to 6 in. diameter, large semipermanent seals, and large (4 ft. diameter) easily opened and closed seals." @default.
- W158759747 created "2016-06-24" @default.
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- W158759747 date "2013-01-01" @default.
- W158759747 modified "2023-09-25" @default.
- W158759747 title "The Production of Ultra-high Vacuum in Metal Systems Larger than One Thousand Liters" @default.
- W158759747 doi "https://doi.org/10.1016/b978-1-4831-9852-1.50016-5" @default.
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