Thermionic cathode

Details Thermionic cathode Thermionic cathode

1979-04-03

1981-06-16

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Electrode and shield structures

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

313270, 313337, 252514, H01J 114, H01J 1906, H01K 114

Patent

active

042740304

ABSTRACT:
A reaction thermionic cathode of the diffusion type on the basis of an activated high-temperature support metal doped with a diffusion-promoting additive for the activator substance, provided with a barrier layer inhibiting the self-diffusion of this additive in an undesired direction.

REFERENCES:
patent: 3243638 (1966-03-01), Affleck
patent: 3373307 (1968-03-01), Zalm et al.
patent: 3437865 (1969-04-01), Gabor et al.
patent: 3454816 (1969-07-01), Hoffmann et al.
patent: 3497757 (1970-02-01), Zalm et al.
patent: 3531679 (1970-09-01), Katz
patent: 3967150 (1976-06-01), Lien et al.
patent: 4019081 (1977-04-01), Buxbaum et al.
patent: 4083811 (1978-04-01), Bachmann et al.
patent: 4096406 (1978-06-01), Miram et al.
patent: 4165473 (1979-08-01), Falce

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