CSNS/RCS高频系统直接反馈控制子系统构建  

Construction of Direct Feedback Control Subsystem for CSNS/RCS RF System

作　　者：朱俊裕[1,2] 张春林 孙虹[2] 李晓 陈胜义 刘洋[1,2] 龙巍 ZHU Jun-yu;ZHANG Chun-lin;SUN Hong;LI Xiao;CHEN Sheng-yi;LIU Yang;LONG Wei(China Spallation Neutron Source,Institute of High Energy Physics,Chinese Academy of Sciences,Dongguan Guangdong 523803,China;Spallation Neutron Source Science Center,Dongguan Guangdong 523803,China)

机构地区：[1]中国科学院高能物理研究所东莞分部,广东东莞523803 [2]散裂中子源科学中心,广东东莞523803

出　　处：《核电子学与探测技术》2021年第4期668-672,共5页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金(11875270)资助。

摘　　要：为提高CSNS/RCS高频系统的动态响应和减小对射频功率源的影响,构建了CSNS/RCS高频系统直接反馈控制子系统。该子系统采用两级并联电子四极管进行反馈闭环控制,实现了功率增益大、响应频带宽和抗冲击能力强的功能。试验结果表明,其能够有效地提高CSNS/RCS高频系统的稳定性和抑制束流负载效应。In order to improve the dynamic response of CSNS/RCS high frequency system and reduce the influence on RF power source,a direct feedback control subsystem of CSNS/RCS RF system was constructed.In this subsystem,two-stage parallel electronic tetrode was used for feedback closed-loop control,which realizes the functions of large power gain,wide response band and strong shock resistance.The experimental results show that it can effectively improve the stability of CSNS/RCS RF system and suppress the beam loading effect.

关 键 词：CSNS 直接反馈控制 反馈放大器 

分 类 号：TL54[核科学技术—核技术及应用]