中文摘要：

快前沿的高电压脉冲在脉冲功率技术领域具有重要应用,使用快前沿的触发信号触发气体火花开关,能有效减小气体开关的抖动,使Marx发生器的输出抖动减小,从而有利于多台Marx发生器的精确同步并联工作。为利用陡化回路将触发器的输出电压脉冲进行陡化以得到快前沿的高压脉冲,分析陡化回路的工作原理后针对100 kV触发器设计了陡化器。确定了陡化器内可以使用的不同电极结构陡化开关的相关测量方法,研究了气体种类、电压大小以及电极结构这些因素对陡化回路工作性能的影响。当陡化回路选用间隙为5mm的尖电极陡化开关、陡化开关内充入0.60-0.90 MPa的N2、触发器主电容充电55 kV时,幅值为90 kV的电压脉冲其前沿从20ns降低为2.3 ns。研究结果表明：陡化开关内使用N2,适当提高输入脉冲电压幅值并增大陡化开关场强时,陡化回路的陡化效果更好。

英文摘要：

Using the fast risetime trigger signal to trigger gas-gap switch will decrease the jitter of the output pulse effectively for the gas-gap switch, the jitter of the output pulse also will be decreased for Marx generator, and this will be beneficial for several parallel Marx generators to work in precision synchronism. The peaking circuit is used to peak the risetime of the output voltage pulse for triggering generator, the peaking principle of the peaking circuit is analyzed in this paper, the peaking apparatus is designed on the basis of the 100kV triggering generator, these different peaking switches with different electrode configuration can be used in the peaking apparatus. The influential factors on peaking performance of the peaking circuit such as the sort of gas, the value of voltage and the electrode cofifiguration are researched. While an acute electrode peaking switch with 5mm gas-gap is used in the peaking circuit, and 0.60-0.90MPa N2 is charged in this peaking switch, and the main capacitor of the triggering generator is charged to 55 kV, the risetime of a 90 kV output voltage pulse is reduced from 20 ns to 2.3 ns. The results show that, while N2 is charged in the peaking switch, the voltage amplitude of the input pulse is increased properly, and the electric-field distribution of the peaking switch is enhanced, the peaking effect of the peaking circuit will be better.