反馈抑制HLS注入过程中β振荡的尝试  

Feedback Suppression of β Oscillation in Injection of HLS

作　　者：王筠华[1] 贡顶[1] 刘建宏[1] 郑凯[1] 杨永良[1] 孙葆根[1] 卢平[1] 

机构地区：[1]中国科学技术大学国家同步辐射实验室,合肥230029

出　　处：《高能物理与核物理》2004年第4期426-430,共5页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金 ( 10 175 0 63 )资助~~

摘　　要：为了提高注入束流的积累 ,抑制由于注入系统误差所引起较大的 β残余振荡是非常有必要的 .本文较系统地介绍了合肥光源 (HLS)抑制注入 β振荡反馈系统的设计思想、原理和线路 ,并提供了它的初步实验结果 .作为原理论证和预研 ,我们使用了一个相对简单的模拟滤波器和移相器对Kicker过程激发的 β振荡进行反馈 ,看到了明显的抑制作用 .为以后研制低频和高频反馈系统 ,研究抑制束流的横向和纵向不稳定性打下基础 .In order to improve the accumulation of the injected beam, it is necessary to restrain β-oscillation because of injection system error. This paper systematically introduces the design principle and circuit of the feedback system for the injected β-oscillation suppression of HLS. It also provides the preliminary experimental results. As the proof of the theory and pre-study, we use a relatively simple analog filter and phase shifter to agitate the Kicker course, which causes the β-oscillation, and get the feedback, from which we see the obvious suppression effect. All of these are the foundation of feedback system of bunch-by-bunch and lower frequency in the future, which are for the research of transverse beam & lognitudinal beam instability.

关 键 词：反馈系统 束流位置监测系统 合肥光源环 移相器 β振荡 电路设计 

分 类 号：O572[理学—粒子物理与原子核物理]