Creep Resistant Electron Emitter Material And Fabrication Method
AssigneeGeneral Electric Company
InventorsAndrew Marconnet, Gregory' A. Steiniage
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Abstract
In the present invention, a flat emitter is formed from emitter material preforms shaped as thin sheets of the emitter material. These sheets are subjected to various levels and/or amounts of mechanical working during their initial formation and are bonded to one another to create a preform having the desired thickness. The preform including the bonded sheets is subsequently worked to shape the preform into the desired configuration for the emitter. The working of the sheets of emitter material utilized to create the preform and the working of the preform to form the emitter provide a highly creep-resistant emitter that significantly improves the operation and useful life of the resulting emitter.
Claims21
A method for forming an electron emitter with enhanced creep-resistant properties for an x-ray tube comprising the steps of:
- providing a plurality of planar sheets formed of an electron emitting material in an assembly;
- and
- subjecting the assembly to a consolidation process to form the electron emitter.
A method for forming an electron emitter for an x-ray tube having enhanced creep-resistant properties comprising the steps of:
- providing a plurality of sheets of an electron emitting material;
- joining the plurality of sheets to form an assembly;
- subjecting the assembly to a consolidation process to form an emitter material;
- and
- shaping the emitter material to form the electron emitter.
An electron emitter with enhanced creep-resistant properties for an x-ray tube comprising:
- an assembly of sheets having a defined creep-resistance, each sheet including at least one component formed of an electron emitting material.
Dependencies are inferred from the claim text.