摘要
本文描述采用火花隙开关和一小段水线的中间储能器(简称短水线中储)的纳秒脉冲发生器。通过改变短水线中储的溶液电阻便可获得不同的电压增益(输出电压对直流充电电压之比)。文中讨论了电参数对电压增益系数K影响;给出了短水线输出电压相对值的数学表达式;并在考虑和忽略开关等效孤道电阻的情况下估计了K值。在同轴的模拟装置上进行过一系列试验研究,电压增益可达1.6倍。该装置是一种可以调节增益的高压纳秒脉冲发生器。实验表明该发生器储能 2.7J时可获得50kV的三个触发脉冲,其抖动τ_j<3ns,上升时间τ_R<30ns。作为一种精密触发用的新的纳秒脉冲发生器在此基础上已建立。它可以在重复频率从0.5Hz,1Hz,直到20Hz的条件下连续工作,所达累计充放电次数已分别为 10~7次,5×10~4次和10~8次。这个新的脉冲发生器工作稳定、可靠。加大储能可输出更多的脉冲。本文对研制小型光脉冲电离激光器的脉冲泵浦装置用发生器有参考价值。
This paper describes a nanosecond pulse generator using a spark gap switch and a short water line mediate storage (WLMS ). Various voltage-gain (ratio of output voltage to DC charge voltage) of 1.2～1.6 times has been obtained by varying the value of the WLMS's solution resistance. The influence of the electrical parameters on voltage-gain coefficient K is discussed . A series of experimental investigations have been done at a coaxial test device and the voltage gain of 1.6 was obtained. Experiments show that three output trigger pulses of 50 kV have been obtained at 2.7 J storage energy. The jitter τj is less than 3 ns with a rise time τR less than 30ns . Based on these experiments, a new nanosecond pulse generator as an accurate trigger generator has been designed and construted. The repetition rate is from 0.5 Hz, 1 Hz up to 20 Hz and accumulative total charge-discharge times are 107, 5×104 and 10~8, respectively.
出处
《强激光与粒子束》
EI
CAS
CSCD
1991年第3期391-397,共7页
High Power Laser and Particle Beams
关键词
电压
增益
脉冲发生器
抖动
spark gap switch, short water line mediate storage
