Title :
The ferroelectric cathode
Author :
Einat, M. ; Jerby, E. ; Rosenman, G.
Author_Institution :
Tel Aviv Univ., Israel
Abstract :
The ferroelectric electron cathode is a newly developed source of electrons. The mechanism of electron emission from the ferroelectric ceramic to the vacuum is different than that of the common thermionic cathode. As a result, its useful features enable new schemes of microwave tubes with considerable advantages such as a high current electron beam. What´s more, the restrictions associated with its limitations may coincide with specific needs of various new microwave generators such as a disposal microwave tube.
Keywords :
cathodes; ferroelectric devices; microwave tubes; electron emission; ferroelectric cathode; microwave tube; Cathodes; Ceramics; Current density; Electrodes; Electron emission; Ferroelectric materials; Piezoelectric effect; Piezoelectric polarization; Plasma materials processing; Pyroelectricity;
Journal_Title :
Potentials, IEEE
DOI :
10.1109/MP.2002.1033654
