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Ultra-high vacuum pump

Abstract:

The Evapor-ion pump is designed for producing vacua down mined by the amount of active material which can be con. to 10 y mm in non-cyclic systems. The principle of the tained in the plates. The life of the battery is, in part, deteroperation is that titanium wire is fed on to a post heated by mined by the ability of the grid structure of the positive electron bombardment from a filament. The titanium plates to retain the active material. A new type of positive evaporates and, upon striking the cooled pump wall, con-plate, designated the Pg plate, has been introduced to meet denses as a thin layer. This acts as a getter for active gases, these requirements. This consists of a number of thin PVC which comprise over 99% of the residual air. As each layer tubes each extensively perforated to provide a great aces $ of titanium becomes chemically saturated. a fresh layer is bility of the electrolyte to the active material. Each PVC …