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The similarity of gas discharge in low-pressure argon gaps between two plane-parallel electrodes was investigated by experiments, numerical simulations and theoretical analysis. It was found by the experiments that the breakdown voltages depend not only on the product of gas pressure and gap length, but also on the aspect ratio of the gap, i.e. Ub = f (pd, d/r). It was theoretically proved that Ub...
Summary form only given. Because of higher hold-off voltage and higher current than power semiconductor such as GTO, MOSFET, PCSS, SOS etc., spark gap switches are generally used in the last output stage of high power modulator. But its recovery time is millisecond level, so it is prevented on the high rep-rate conditions. The gaseous recovery in a spark gap was investigated by using Two-pulses method...
A current loss happens in the load section of an X-pinch, and it most possibly results from a vacuum breakdown somewhere from the side top of the cathode outward to the anode. The current loss was avoided by shortening the a-c gap, which is the gap between the anode and the cathode. It was found that the shortening of the a-c gap has reduced the impedance of the a-c gap, leading to a reduced impedance...
Summary form only given. Experiments of DBD in a 2-mm air gap were performed. When fine wire mesh electrodes covered with 0.1 mm PET film and 50 Hz AC power source were used, the breakdown voltage of the gap is 6.4 kV, about 1.3 W lower than that using plate electrodes covered with 1 mm quartz plate. The discharge using the mesh electrodes covered by PET film looks more uniform than that using plate...
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