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Time dependence of high-current vacuum diode impedance resulting from cathode plasma expansion
1998 / IEEE / 0-7803-4287-9
This item was taken from the IEEE Conference ' Time dependence of high-current vacuum diode impedance resulting from cathode plasma expansion ' 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/spl sim/(RU/D)/sup 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.
High-current Vacuum Diode Impedance
Cathode Plasma Expansion
High-current Planar Diode
Discrete Emitting Surface
Electric Field Pressure
Nuclear And Plasma Sciences
Emission Center Size