HIRFL高频相位与幅度稳定系统  

Phase and Amplitude Stabilization System of Cavity Electric Field for HIRFL

作　　者：李强[1] 林兴隆[1] 许哲 王春晓[2] 李靖[1] 慈国辉[1] 高宜海[2] 

机构地区：[1]中国电子科技集团公司第54研究所,河北石家庄050081 [2]中国科学院近代物理研究所,甘肃兰州730000

出　　处：《原子核物理评论》2013年第4期425-429,共5页Nuclear Physics Review

摘　　要：介绍了兰州重离子研究装置(HIRFL)主回旋加速器(SSC)高频系统高频电压的相位稳定与幅度稳定系统,重点介绍了设备的组成和稳定环路设计以及正交变换与稳定环路滤波器的设计方法。通过在SSC腔体上进行的长期的现场测试,得到了调制抑制度与长期稳定度的测试方法,并对结果进行了分析。其中,设备的长期相位稳定度达到0.014°,长期幅度稳定度达到1.29×10-4,远高于改造前的指标。The phase and amplitude stabilization system of high-frequency voltage on the main cyclotron SSC of Heavy Ion Research Facility in Lanzhou （HIRFL） is introduced. The system composition, negative feedback loop design and other important aspects about the development of the system are particularly presented in this paper. Designing method of digital PLL orthogonal transformation and loop filter of phase and amplitude stabilization are introduced in detail. Control systems of SSC have been tested through a long-term stability experiments, the test method of the parasitic modulation suppression and stabilization in long term is proposed. According to the analyzing data, it shows that phase control accuracy in long term is within 0.014° and the amplitude deviation in long term is lower than 1.29 × 10-4 Compared with the traditional system, its capability and target is much better.

关 键 词：相位稳定 幅度稳定 环路设计 长期稳定度 调制抑制度 

分 类 号：TL503.2[核科学技术—核技术及应用]