Electron beam gun with kinematic coupling for high power RF vacuum devices
AssigneeDymenso LLC
InventorPhilipp Borchard
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Abstract
An electron beam gun for a high power RF vacuum device has components joined by a fixed kinematic coupling to provide both precise alignment and high voltage electrical insulation of the components. The kinematic coupling has high strength ceramic elements directly bonded to one or more non-ductile rigid metal components using a high temperature active metal brazing alloy. The ceramic elements have a convex surface that mates with concave grooves in another one of the components. The kinematic coupling, for example, may join a cathode assembly and/or a beam shaping focus electrode to a gun stem, which is preferably composed of ceramic. The electron beam gun may be part of a high power RF vacuum device such as, for example, a gyrotron, klystron, or magnetron.
Claims20
An electron beam gun for a high power RF vacuum device comprising:
- a base, a cathode stem, and an anode assembly;
- wherein the cathode stem and anode assembly are joined to the base;
- wherein the anode assembly comprises an anode;
- wherein the cathode stem comprises a gun stem, a fixed kinematic coupling, a cathode assembly, and a beam shaping focus electrode,
- wherein the cathode assembly comprises a cathode housing made of a first non-ductile rigid metal material;
- wherein the beam shaping focus electrode is composed of a second non-ductile rigid metal material,
- wherein the cathode assembly and beam shaping focus electrode are joined to the gun stem using the fixed kinematic coupling,
- wherein the fixed kinematic coupling comprises high strength ceramic elements directly bonded to the beam shaping focus electrode and cathode housing using a high temperature active metal brazing alloy,
- wherein the kinematic coupling comprises V-grooves in the gun stem to mate with the three high strength ceramic elements.
An electron beam gun comprising a first component joined to a second component by a fixed kinematic coupling, wherein the first component is a non-ductile rigid metal, and wherein the fixed kinematic coupling comprises:
- convex ceramic elements composed of silicon nitride or silicon carbide directly bonded to the first component using a high temperature active metal brazing alloy having a melting temperature higher than 970 degrees C., and
- concave grooves in the second component arranged to mate with the convex ceramic elements.
Dependencies are inferred from the claim text.