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基于激光等离子体和过电压波击穿原理研制了应用于高功率“Z-pinch”装置的22级5 MV激光触发多级多通道开关,采用钳位环技术解决了狭小空间的匀场问题,过压自击穿间隙场分布不均匀度约为0.080,激光触发间隙场分布不均匀度约为0.056,由绝缘部件沿面电场强度决定的系统安全系数约为0.8。根据J.C.Martin公式和静电场分析计算结果,解决了高功率“Z-pinch”装置主开关及开关区的工程设计问题。
Based on the principle of laser plasma and over-voltage wave breakdown, a 22-stage 5 MV laser triggered multistage multi-channel switch used in high power “Z-pinch” devices was developed. The clamping ring technology was used to solve the problem of shimming in a narrow space. The overvoltage self-breakdown gap field distribution is about 0.080, the laser-induced gap field distribution non-uniformity is about 0.056, and the system safety factor determined by the electric field strength along the insulating part is about 0.8. According to J.C.Martin formula and electrostatic field calculation result, the engineering design of main switch and switch zone of high power “Z-pinch” device is solved.