Thermal field emission cathode

Details Thermal field emission cathode Thermal field emission cathode

1998-10-13

2000-10-17

Patel, Vip

Electric lamp and discharge devices

Electrode and shield structures

Cathodes containing and/or coated with electron emissive...

313336, 313346DL, H01J 114

Patent

active

061336793

ABSTRACT:
A thermal field emission cathode comprising a tungsten single crystal having an axis direction of <100> and a coating layer of zirconium and oxygen formed thereon, wherein a source for supplying zirconium and oxygen contains an element capable of forming cubic or tetragonal zirconium oxide at an operation temperature of the thermal field emission cathode.

REFERENCES:
patent: 5449968 (1995-09-01), Trrui et al.

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