yang an-min, wu deng-xue, liu chen-jun, et al. Large area dispenser cathode applied to high current linac[J]. High Power Laser and Particle Beams, 2005, 17.
Citation:
yang an-min, wu deng-xue, liu chen-jun, et al. Large area dispenser cathode applied to high current linac[J]. High Power Laser and Particle Beams, 2005, 17.
yang an-min, wu deng-xue, liu chen-jun, et al. Large area dispenser cathode applied to high current linac[J]. High Power Laser and Particle Beams, 2005, 17.
Citation:
yang an-min, wu deng-xue, liu chen-jun, et al. Large area dispenser cathode applied to high current linac[J]. High Power Laser and Particle Beams, 2005, 17.
The paper introduced a dispenser cathode (411 M) which was 55 mm in diameter. A 200 kV long pulsed power generator with 2 μs flattop based on Marx-PEN and system with heat and voltage insulation were built. A 52 A space charge limited current was gained, when the temperature was 1 165 ℃ and the filament current was 18 A on the cathode and the voltage of the pulse was 75 kV at the cathode test stand. Experimental results show that the current values is consistent with the numerical simulation. The experiment reveals that the deflated gas will influence the cathode emittion ability.
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