摘要
研制了一台紧凑重频脉冲形成网络(PFN)-Marx脉冲发生器,由PFN-Marx发生器、脉冲充电单元、重频触发单元等组成。PFN-Marx发生器模块采用全电感隔离,直径为480mm,长度为700mm。脉冲充电单元采用中储电容加脉冲变压器方法,单次充电可以满足10次输出。重频触发单元采用变压器和磁开关一体化设计的全固态Marx发生器技术,输出电压大于50kV,前沿小于100ns。脉冲发生器早期输出电参数为单次10GW,脉冲宽度100ns,前沿10ns,阻抗40Ω。重频工作时输出功率7GW,频率5Hz。后期调整后电参数更改为单次10GW,脉冲宽度70ns,前沿10ns,阻抗50Ω。重复频率工作时稳定输出功率8GW,频率10Hz,单串10个脉冲。初步的应用研究中,利用改进后的平台,在5GW条件下驱动磁控管获得了S波段约1GW的微波输出。
A compact repetitive PFN-Marx generator was constructed for the application of generating electron beams.The generator has twenty-two stages with inductive isolation.Each stage consists of twenty-one ceramic capacitors which may be charged the maximal voltage of 60 kV by apulse transformer in 50μs.A compact Marx trigger with the integrated design of a pulse transformer and a magnetic switch which have a common magnetic core was also fabricated.The generator can operate at5 Hz rep-rate with the output power of 7GW,the impedance of 40Ωand the pulse width of 100 ns.Changing the capacitor units,an improved generator with the impedance of 50Ωand the pulse width of 70 ns generates ten pulses of one burst with the power of 8GW at 10 Hz rep-rate.An S-band magnetron driven by the improved generator has generated microwave output with the power of 1GW at the frequency of 2.32 GHz,which preliminarily shows the generator's ability of driving high power microwave devices.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2016年第1期98-103,共6页
High Power Laser and Particle Beams
基金
国家高技术发展计划项目
