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US 5,786,666 AGranted
Collector surface for a microwave tube comprising a carbon-bonded carbon-fiber composite
AssigneeLockheed Martin Energy Systems, Inc.
InventorsRobert J. Lauf, April D. McMillan, Arvid C. Johnson, Arthur J. Moorhead
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Abstract
In a microwave tube, an improved collector surface coating comprises a porous carbon composite material, preferably a carbon-bonded carbon fiber composite having a bulk density less than about 2 g/cc. Installation of the coating is readily adaptable as part of the tube manufacturing process.
Claims4
In a microwave electron device having at least:
- an electron source;
- a focused electron beam originating at said source and defining an electron optical path;
- and a copper collector for collecting said electron beam;
- an improvement comprising:
- vacuun brazed a shaped carbon-bonded carbon-fiber composite body to at least one surface of said electron copper collector for reducing the emission of secondary electrons from said surface due to the impingement of said electron beam thereon, said shaped carbon-bonded carbon-fiber composite body having one substantially impermeable surface, said substantially impermeable surface being the surface that is vacuum brazed to said at least one surface of said copper collector.
2 more elements
Dependencies are inferred from the claim text.