基于示波器嵌入式IOC技术的逐束团位置监测系统研制  

A bunch-by-bunch beam position monitor based on scope embedded IOC

作　　者：张宁[1] 冷用斌[1] 陈之初[1] 袁任贤[1] 赖龙伟[1] 

机构地区：[1]中国科学院上海应用物理研究所,上海201800

出　　处：《核技术》2012年第5期337-341,共5页Nuclear Techniques

基　　金：国家自然科学基金(11075198)资助

摘　　要：为研究尾场引起的束团不稳定性,本工作开发了基于高速宽带示波器嵌入式IOC的逐束团位置测量系统。该系统通过直接获取加速器储存环中钮扣型电极的原始束流信号,进行在线计算独立的水平和垂直方向的逐束团位置。介绍了此系统的需求分析、硬件结构以及嵌入式IOC软件结构。利用在上海光源储存环上获取的逐束团位置数据,对系统性能进行了评估。实验显示,不同束团感应到的工作点及横向振荡振幅与束团编号间的依赖关系,结果证明该系统是一个有效的机器研究工具。A bunch-by-bunch beam position monitor system,based on a broadband oscilloscope embedded EPICS IOC,has been developed at SSRF to study the beam instabilities driven by the wake-field effects.The horizontal and vertical beam positions of each bunch could be located independently in this system by using the original signals from the button-type pickups on the storage ring.In this article,we report the hardware and software architecture of this system.The bunch-by-bunch data of the storage ring are used to evaluate performance of the system.Dependency of the tune,and the betatron oscillation amplitude of different bunch on the corresponding bunch ID,is also detected.The system is an effective tool for machine-study of SSRF.

关 键 词：束团不稳定性 逐束团测量 束流诊断 尾场 上海光源 

分 类 号：TL506[核科学技术—核技术及应用]