【摘要】 用电容平衡法测量ACPDP宏放电单元在维持放电期的壁电荷变化,并根据宏放电单元壁电荷电压和外 加最小维持电压的测量结果计算实际施加在放电气体上的击穿电压,探讨壁电荷电压对放电气体实际击穿电压的 影响．实验结果表明:随着ACPDP外加最小维持电压的增加,壁电荷电压升高,气体的击穿电压也随之升高; 有壁电荷时的气体击穿电压明显高于无壁电荷时的气体击穿电压,随着壁电荷电压从7．62 V升高到67．89 V,有壁 电荷时的气体击穿电压比无壁电荷时的气体击穿电压分别提高了6．98 V到57．09 V;壁电荷增加会显著提高了放电 气体的击穿电压阈值,使ACPDP内放电气体的击穿变得困难．更多还原

【Abstract】 The variation of wall charge accumulation during sustaining discharge period-was measured to investigate the influence of wall charges on the gas breakdown in ACPDP using balanced capacitor groups. The real breakdown voltage of filling gas in a testing macroscopic discharge cell of ACPDP was calculated according to the measured minimum sustaining voltage and the voltage of wall charges. It is observed that the gas breakdown voltage with wall charge accumulation is higher than that without wall charge accumulation. The voltage of wall charges rises with the increasing minimum sustaining voltage. When the wall charge voltage rose from 7.62 V to 67.89 V, the increased gas breakdown voltage ΔV (with and without wall charge accumulations) rose from 6.98 V to 57.09 V. The accumulation of wall charges increases the gas breakdown voltage obviously.更多还原