Abstract
The results of studies of a high-voltage two-electrode spark gap switch (SGS) with forced gas blow at an operation voltage of up to 1.2 MV are presented. An SGS filled with nitrogen as the working gas at a pressure of up to 16 atm operated as the high-voltage switch of a high-current nanosecond electron accelerator. The gas flow was directed normally to the breakdown path. The SGS switched a 50-Ω forming line with an electrical length of 10 ns to a matched load. The voltage rise time across the electrodes before breakdown was ̃25μs. A stable repetitively pulsed mode is realized at operating voltages of 100-680 kV and pulse repetition rates of up to 270 Hz with a standard deviation of the pulse breakdown voltage of ≤1%. The physical mechanisms that determine unstable operation of the device during self-breakdown are analyzed.
Original language | English |
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Pages (from-to) | 838-845 |
Number of pages | 8 |
Journal | Instruments and Experimental Techniques |
Volume | 51 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Nov 2008 |
ASJC Scopus subject areas
- Instrumentation