Emission properties of a plasma cathode based on a glow discharge for generating nanosecond electron beams |
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| Authors: | V I Gushenets N N Koval’ V S Tolkachev P M Shchanin |
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| Institution: | (1) Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, 634055 Tomsk, Russia |
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| Abstract: | The emission properties of a plasma cathode based on a nanosecond pulsed glow discharge with currents of up to 200A at a pressure
of 5×10−2 Pa are studied experimentally. Stable ignition and burning of the discharge are ensured if the current in the auxiliary pulsed
discharge is 25–30% of that in the main discharge and its pulse duration exceeds that of the main discharge by more than an
order of magnitude. Emission current pulses from the cathode with amplitudes of up to 140A fully reproduce the discharge current
and are determined by the transparency of the grid anode.
Zh. Tekh. Fiz. 69, 62–65 (November 1999) |
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