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为追踪国际上脉冲功率技术的发展方向,在“闪光二号”加速器上开展了水介质形成线并联技术、多级多通道气体开关技术和同步触发技术等研究。经过3维结构下电场分布的模拟计算和绝缘设计,采用3根6Ω小水线并联组成了2Ω水介质形成线,研制成功了作为主开关的3 MV多级多通道气体触发开关,并实现了3个多级多通道气体开关的并联运行;采用工作时延446 ns的同步触发系统实现了Marx发生器与主开关的延时同步运行。真空负压下的涡流循环冲刷消除水中气泡技术应用于水介质形成线上,有效消除了并联形成线汇聚结构处的气泡,提高了加速器运行的安全性。经过调试后,加速器重新获得了稳定的运行状态,几项新技术的应用获得成功。
In order to track the development of pulse power technology in the world, a series of studies have been conducted on the formation of parallel lines of aqueous media, multi-stage multi-channel gas switching and synchronous triggering on the Flash II accelerator. After three-dimensional structure of the electric field distribution under the simulation and insulation design, using 3 6Ω small water parallel to form a 2Ω aqueous medium formation line, the successful development of the 3 MV multi-stage multi-channel gas switch as the main switch and achieve 3 multi-stage multi-channel gas switch parallel operation; the use of delay 446 ns synchronous trigger system Marx generator and the main switch delay synchronization operation. Vortex circulating vacuum under vacuum scouring eliminate bubbles in water technology used in the formation of water line, effectively eliminate the line parallel to the formation of bubbles at the convergence of structures to improve the safety of accelerator operation. After debugging, the accelerator regained a steady state of operation, and several new technologies were successfully applied.