百kV级纳秒脉冲源的设计与实验研究

Design and experimental research of 100 kV nanosecond pulse generator

GW级Tesla型脉冲源在触发开关技术研究中作为触发脉冲源使用,抖动较大,触发开关工作不稳定,需要为其研制一台触发器以解决这一问题。结合其他使用需求,设计了一台百kV级纳秒脉冲源,该脉冲源采用Tesla变压器结合单筒脉冲形成线结构,进行了Tesla变压器结构、Tesla变压器初次级参数、Tesla开路磁芯与初级电路设计,调试结果为:最高输出电压100kV,峰值功率250MW,重复频率1～100Hz,输出脉冲宽度约4ns,前沿约1ns。该脉冲源作为触发器使用,可以将GW级Tesla型纳秒脉冲源抖动由500ns降低至150ns,满足触发开关研究需求,还可用于产生超宽谱短脉冲进行辐射。

A 100 kV nanosecond pulse generator has been designed and tested,which is based on Tesla transformer and single-cylinder pulse forming line.The design of main parameters of the pulse generator is described.A high voltage nanosecond pulse generator is achieved with the highest output voltage of 100 kV,peak power up to 250 MW,pulse duration of 4 ns,rise time of 1 ns,and repetition rates ranging from 1 to 100 Hz.The pulse generator can be used as a trigger source to reduce the jitter of larger nanosecond pulse generator.Acting as the trigger source,the pulse generator reduces the jitter of GW-level Tesla pulser from 500 to 150 ns.