摘要
加速器技术的发展,对注入引出系统的kicker脉冲电源提出了新的技术要求。注入引出系统冲击磁铁不仅要求脉冲电压高,底宽达到ns量级,还对波形的稳定性和前后残余电压有很高要求。漂移阶跃恢复二极管(DSRD)因其速度快、工作电流大等优点,在ns级脉冲电源中应用前景广泛,但其工作过程中会存在预脉冲等使脉冲波形偏离理想形态的因素。基于一种已有的DSRD脉冲电源,使用非线性传输线对脉冲进行整形,同时对脉冲的前后边沿进行锐化,缩短脉冲边沿的时间,大幅减小脉冲前后的残余电压,提高电源的性能。完成了一台电源样机的设计和实验,实验结果表明,该样机在50Ω负载上产生的脉冲幅值约10 kV,前后边沿时间(10%~90%)约2 ns,底宽(3%~3%)小于8 ns。
There is an increasingly higher requirement on the pulse source of kicker in the injection and extraction system with the development of accelerators.As a special nanosecond switch,Drift Step Recovery Diode(DSRD)has a great application prospect in pulse power technology for its notably short switching-off time and large working current.However,there are some factors such as pre-pulse that make the pulse waveform deviate from the ideal shape.A prototype of pulse generator was designed and tested.It is based on a basic DSRD circuit,at the same time,the Non-Linear Transmission Line(NTL)is used to shape the pulse,compress the edge and reduce the residual voltage.Its circuit experiment shows that the pulse amplitude on resistor load of 50Ωis about 10 kV,the rise time and fall time are about 2 ns(10%−90%)and the bottom width(3%−3%)is less than 8 ns.
作者
史晓蕾
陈锦晖
王冠文
王磊
刘鹏
Shi Xiaolei;Chen Jinhui;Wang Guanwen;Wang Lei;Liu Peng(Accelerator Division,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《强激光与粒子束》
CAS
CSCD
北大核心
2023年第10期139-143,共5页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(11675194,11475200)。