Bi-metallic anode for amplitude modulated magnetron
AssigneeMuons, Inc.
InventorsMichael L. Neubauer, Alan J. Dudas, Stephen A. Kahn
Life of this patent
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Abstract
An anode structure for a magnetron provides for low eddy currents and efficient water cooling. The anode structure may be made by machining a bimetal blank including an out layer of a first metal and an inner layer of a second metal and formed by explosion bonding. The second metal has a resistivity lower than first metal and a thermal conductivity higher than the first metal. The machining may result in the anode structure with vanes each having a center (tip) portion made of the second metal and the rest made of the first metal. The machined anode structure may be coated with the second metal.
Claims20
A method for making an anode of a magnetron having a cathode, comprising:
- producing a cylindrical wall using a first metal, the cylindrical wall having an exterior surface and an interior surface;
- and
- producing multiple vanes using the first metal and a second metal, the multiple vanes extending inwardly from the interior surface of the cylindrical wall, defining a central cavity for accommodating the cathode, and defining multiple sectorial cavities each between two adjacent vanes of the multiple vanes and connected to the central cavity, the multiple vanes each having a tip surface facing the central cavity, a base portion made of the first metal and connected to the interior surface of the cylindrical wall, and a center portion made of the second metal, connected between the base portion and the tip surface, and including a cooling water channel configured to allow for flowing of a cooling fluid.
An apparatus for operating as an anode in a magnetron having a cathode, the anode to be cooled using a cooling fluid, the apparatus comprising:
- a cylindrical wall made of a first metal and having an exterior surface and an interior surface;
- and
- multiple vanes extending inwardly from the interior surface of the cylindrical wall, defining a central cavity for accommodating the cathode, and defining multiple sectorial cavities each between two adjacent vanes of the multiple vanes and connected to the central cavity, the multiple vanes each having a tip surface facing the central cavity, a base portion made of the first metal and connected to the interior surface of the cylindrical wall, and a center portion made of a second metal, connected between the base portion and the tip surface, and including a cooling water channel configured to allow for flowing of the cooling fluid.
Dependencies are inferred from the claim text.