Thermionic cathode

Details Thermionic cathode Thermionic cathode

1977-05-18

1979-01-30

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313346R, H01J 116, H01J 1910

Patent

active

041374762

ABSTRACT:
A thermionic cathode for an electron beam device is provided which comprises a first layer of thermoelectron emissive compound sharpened towards a point, a third layer of metal of high melting point and a second layer of reaction barrier interposed between the first and third layers, current terminals being attached to said third layer. According to the invention, a thermionic cathode capable of emitting stable electron beams of high intensity for a long period of time can be manufactured.

REFERENCES:
patent: 3312856 (1967-04-01), Lafferty et al.
patent: 3440475 (1969-04-01), Schiller et al.
patent: 3745403 (1973-07-01), Misumi
patent: 3823337 (1974-07-01), Van Stratum et al.
patent: 3928783 (1975-12-01), Hoskoi et al.
patent: 4055780 (1977-10-01), Kawai et al.

Affiliated with

Also associated with

Rating

Thermionic cathode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermionic cathode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermionic cathode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1152469