专利名称：Vacuum pump having a radially segmented,
annular anode
发明人：DETRO RICHARD GUY申请号：US55233966申请日：19660523公开号：US3368100A公开日：19680206
摘要：1,064,146. Ion pumps; velocity-modulated tubes. GENERAL ELECTRIC CO. Nov.25, 1963, No. 46552/63. Heading HID. An ionic pump comprises an evacuable housing 16capable of containing gas molecules, cathode and anode members 18 and 22 betweenwhich electrons may pass to cause ionization of said gas molecules, said cathode membercomprising a planar ion-sorbing element and said anode member comprising an annularelement sub-divided into a plurality of individual cells extending parallel to thelongitudinal axis of the annular element, and means for establishing a magnetic field insaid housing. In the embodiment shown, the housing 16 is sealed around and incommunication with a drift tube section 9 forming part of the envelope of a klystron.Cathode plates 18 of titanium, zirconium, aluminium, carbon, manganese, stainless steelor combinations thereof are secured to the stainless steel walls of the housing 16 byretaining rings 19, 20 and 21. The cellular anode 22 comprises concentric cylinders 23 and24 and a plurality of radial partitions 25 three of which are welded to rods 26 supportedby cylindrical insulators 32 protected from sputtered material by insulating collars 34.One rod 26 forms the anode lead-in. Apertures 35 in the drift tube 9 communicate withthe interior of the klystron. The inner cylinder 23 of the anode assembly is provided with
apertures 36 or may alternatively be omitted. The field coil of the klystron also providesthe magnetic field for the pump.
申请人：GENERAL ELECTRIC COMPANY
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