DPF-300脉冲X射线源同步触发系统研制

Tian-xue LIANG,Ying GUAN,Bin KUAI,Pei-tian CONG,Dong-sheng LIN,Fu-bin HAN,Shan-chao YANG,Zhong ZHANG

Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams（2007）

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Abstract

DPF-300脉冲X射线源的同步触发系统采用三级触发:第一级由初级脉冲产生器触发氢闸流管;第二级由氢闸流管输出脉冲触发多路触发开关;第三级由多路触发开关和触发箱组成,触发主放电场畸变开关.该触发系统中多路触发开关产生负极性脉冲信号,通过耦合电容,到达开关的触发脉冲上升沿,约为40 ns,脉冲半高宽约60 ns,上升陡度大于0.67 kV/ns.能够同时触发40个同轴型场畸变开关,电压工作范围20～40 kV,不同发次触发箱输出的触发脉冲信号时间分散性小于4 ns,同一发次不同开关的放电时间分散性小于20 ns.在工作电压20 kV,主放电开关充0.115 Mpa氮气时,整机负载电流达到约1 MA.

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Key words

Dense plasma focus,Pulsed X-ray source,Synchronous triggering system,Triggering switch

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