Application of Libera BPM at BEPCⅡ for the Early Commissioning  

Libera BPM在BEPCⅡ调束中的应用

作　　者：曹建社[1] 马力[1] 麻惠州[1] 郭志军[1] 雷革[1] 

机构地区：[1]中国科学院高能物理研究所,北京100049

出　　处：《Chinese Physics C》2008年第z1期102-104,共3页中国物理C（英文版）

摘　　要：With the developments of software radio technique,it not only revolutionizes the technique in modern communication field,but also brings about technical innovation on the beam instrumentation for accelerators.The digital BPM based on software radio and digital receiver,has gained first successful application in accelerator at SLS. The company of Instrumentation Technologies made many efforts to update this device and finally the family devices- Libera were formed.It integrates the analog RF front end electronics,A/D converter,digital signal processing and synchrony trigger into an all in one measurement system with wideband.The Libera can be used at different types of accelerators and it has the functions of first turn,turn by turn and COD measurement.It plays an important role in the BEPCⅡearly commissioning,especially in the beam circulating and stacking of BER and BPR,and also in the residual orbit oscillation measurement.In this paper,we introduce some measurement results by using the multifarious function of Libera,such as first turn,tune,residual orbit oscillation and optimum delay time of injection kicker.软件无线电技术的发展,不仅带来了现代通信领域的技术革命,同样在加速器束测领域中也带来了技术的革新.基于软件无线电技术和数字接收机架构的数字BPM首先在瑞士光源得到了成功的应用,斯洛文尼亚的Instrumentation Technologies公司把该项技术进行了市场化并进行了不断改进,形成了现在的Libera系列产品.它集模拟信号采集、模数转换、数字信号处理以及外同步于一体,是一个真正all-in-one的宽带测量系统.它可以完成束流位置的First Turn、Turn by Turn和COD等测量工作.在BEPCⅡ的初期调束中,在电子环和正电子环的束流闭环、储存和积累、故障查处以及同步环的注入残余振荡测量方面,Libera BPM发挥了出色的作用,加快了调束进程.

关 键 词：Libera software radio residual orbit oscillation first turn 

分 类 号：TL506[核科学技术—核技术及应用]