Optimal conditions efficiency for pulse increasing the breakdown strength of vacuum insulation

High-voltage conditioning efficiency of vacuum gap electrodes at the electric field macrointensity, 1.5.10(7)less than or equal toE(0)less than or equal to1.3.10(10)V/m, by pulses with duration equal to the breakdown delay time is estimated. It's shown that pulse regimes efficiency for increasing the vacuum insulation breakdown strength rises with duration decrease at appropriate intensity increase on cathode and can essential exceed de conditioning efficiency. Limiting results correspond to the conditioning with the subnanosecond pulses at the macrointensity, E(0)similar to10(10)V/m, created in micron gaps.