Electron emitting filaments for electron discharge devices
Patent
·
OSTI ID:5756753
This patent describes an electron emitting device for use in an electron discharge system. It comprises: a filament having a pair of terminal ends, electrical supply means for supplying electrical power to the terminal ends of the filament for directly heating the filament by the passage of an electrical current along the filament between the terminal ends, the filament being substantially tapered in cross section continuously in one direction from one of its pair of terminal ends to another of its pair of terminal ends to achieve uniform heating of the filament along the length thereof by compensating for the nonuniform current along the filament due to the emission of electrons therefrom.
- Assignee:
- Dept. of Energy, Washington, DC (USA)
- Patent Number(s):
- US 4760306; A
- Application Number:
- PPN: US 6-503373A
- OSTI ID:
- 5756753
- Country of Publication:
- United States
- Language:
- English
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