Thermionic cathode for electron tubes and method for the manufac

Details Thermionic cathode for electron tubes and method for the manufac Thermionic cathode for electron tubes and method for the manufac

1997-03-04

1998-10-27

O'Shea, Sandra L.

Electric lamp and discharge devices

Electrode and shield structures

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

313346DC, H10J 122

Patent

active

058281657

ABSTRACT:
Disclosed is a thermionic cathode for electron tubes comprising a material that has a substrate, a compound of an element forming an emitting monolayer, chosen from among the rare earth zirconates, rare earth hafnates, rare earth aluminates and rare earth berylates, and a reducing agent which, at the working temperature of the cathode, reacts with the compound releasing the element that forms the monolayer. Application in particular to electron grid tubes. FIG. 1.

REFERENCES:
patent: 1794298 (1931-02-01), Just
patent: 2218381 (1940-10-01), Gooskens
patent: 4518890 (1985-05-01), Taguchi et al.
patent: 4533852 (1985-08-01), Frank et al.
patent: 5059856 (1991-10-01), Derks

Affiliated with

Also associated with

Rating

Thermionic cathode for electron tubes and method for the manufac 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 for electron tubes and method for the manufac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermionic cathode for electron tubes and method for the manufac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1615794