Repetitively pulsed electron beam diode lifetime and stability
Abstract
Repetitively pulsed vacuum beam diodes will be required for most projected inertially confined fusion systems. Yet data on the operation of diodes under repetitive pulsing is sparse. This paper discusses the operation of a 250 kV, 1.5 kA/sq cm diode at repetition rates to 30 Hz for sustained runs. Short term stability is typically 3 percent (standard deviation). In a longer term there is a drift toward higher impedance at the start of the pulse. Details on this drift and a comparison of this process for a blunt versus sharp edged cathode are presented.
- Publication:
-
2nd International Pulsed Power Conference
- Pub Date:
- 1979
- Bibcode:
- 1979pupo.conf...61B
- Keywords:
-
- Diodes;
- Electron Beams;
- Inertial Fusion (Reactor);
- Pulse Generators;
- Service Life;
- Vacuum Tubes;
- Controlled Fusion;
- Power Efficiency;
- Pulse Rate;
- Pulsed Lasers;
- Electronics and Electrical Engineering