Title :
Time dependence of high-current vacuum diode impedance resulting from cathode plasma expansion
Author :
Belomytsev, S.Ya. ; Korovin, S.D. ; Pegel, I.V.
Author_Institution :
Inst. of High Current Electron., Acad. of Sci., Tomsk, Russia
fDate :
6/20/1905 12:00:00 AM
Abstract :
For a high-current planar diode with discrete emitting surface, dependence of current on emission center size is obtained. If the distance between the centers largely exceeds their size R than I~(RU/D) 3/2 where D is the diode gap. The condition of impedance constancy during the pulse for a high-current diode requires the constancy of electric field pressure on the cathode surface
Keywords :
cathodes; electron sources; plasma diodes; vacuum microelectronics; cathode plasma expansion; cathode surface; discrete emitting surface; electric field pressure; electron source; emission center size; high-current planar diode; high-current vacuum diode impedance; impedance constancy; time dependence; Cathodes; Diodes; Electron beams; Geometry; Nuclear and plasma sciences; Periodic structures; Plasma devices; Space charge; Surface impedance; Voltage;
Conference_Titel :
High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on
Conference_Location :
Haifa
Print_ISBN :
0-7803-4287-9
DOI :
10.1109/BEAMS.1998.822470
