A HIGH VOLTAGE PULSE GENERATOR FOR EXCITING A DISCHARGE PUMPED KrF LASER AMPLIFIER
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摘要: 描述了一台用于泵浦KrF激光放大器的可重复频率运行的高电压脉冲发生器。该脉冲发生器由恒流充电机、储能电容器、传能开关、低阻抗布鲁姆林脉冲形成线、多通道轨条型输出开关组成。介绍了布鲁姆林线和轨条开关的结构,对充电回路和放电回路特性进行了分析,完成了各部分的调试并给出了实验结果。在储能电容器直流充电电压30kV,布鲁姆林线输出电压脉冲在激光器负载上峰值可达到60kV,脉宽80ns,脉冲上升时间30ns。Abstract: A high voltage pulse generator capable of repetitive operation for exciting a KrF laser amplifier is described. It consists of a constant current source, an energy storage capacitor, a transfer switch, a low impedance Blumlein line, and a multichannel rail-gap switch. The configurations of the Blumlein line and the rail -gap switch are presented. The performance characteristics of the circuits in the charge and discharge loops are analysed. The adjustment of the generator is performed and the experimental results are given. With DC charge voltage 30kV of the storage capacitor, the Blumlein line output pulse up to 60kV with a pulse width of 80ns and a rise time of 30ns is obtained.
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