Structural design of 2 MV laser triggered multi-stage gas switch
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摘要: 高功率开关是脉冲功率装置中的重要部件。介绍了2 MV激光触发多级气体开关的设计思路，给出了开关在强光一号装置上的的静态实验和触发实验结果。实验结果表明：开关的性能基本达到设计的要求；开关在低阻抗传输线中进行实验，面临传输电荷量大的问题，传输电荷越大，将导致更多的放电产物，从而使绝缘能力下降，直接影响开关的使用寿命。Abstract: The high power switch is a key assembly in pulse power generators. The paper introduces the designof a 2 MV laser triggered multi-stage gas switch， and presents the results of its static and triggered experiments on Qiangguang-Ⅰ accelerator. The results show that the design goals are achieved. However， the switch has to face the problem of large transmission electric charge when it works in the transmission line of low impedance. Larger transmission electric charge will cause more discharge products， reducing the insulation capability of the switch and thus directly influencing its lifetime.
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Key words:
- laser trigger /
- multi-stage multi-channel /
- gas switch /
- self-breakdown
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