高灵敏度等时性回旋加速器束流相位测量系统  

High Sensitivity Beam Phase Measurement System for Isochronous Cyclotron

作　　者：郑建华[1] 刘巍[1] 王义芳[1] 王延谋[1] 马维年[1] 尹炎[1] 宋海宏[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《高能物理与核物理》2007年第3期303-306,共4页High Energy Physics and Nuclear Physics

基　　金：兰州重离子加速器国家实验室资助~~

摘　　要：介绍了兰州重离子加速器(HIRFL)束流相位测量装置．该装置基于双平衡混频原理,采用了高频信号混频滤波技术,具有较高的测量灵敏度．通过安装在加速器中的容性感应探针探测等时性回旋加速器束流相位历程,在调束中获取等时场信息并对磁场进行优化,从而提高引出束流强度和束流品质是非常重要的．该装置通过等时场相位优化实验,检验了相位测量数据的可靠性,测量精度达到±0．5°．The beam phase measurement system in the HIRFL is introduced. Based on the double-balanced mixer principle using rf-signal mixing and filtering techniques, a stable and sensitive phase measurement system has been developed. The phase history of the ion beam is detected by using a set of capacitive pick-up probes installed in the cyclotron. The phase information of the measurement is necessary for tuning to obtain a optimized isochronous magnetic field which induces to maximize the beam intensity and to optimize the beam quality. The result of the phase measurement is reliable and the accurancy reaches ±0.5°.

关 键 词：HIRFL相位测量 混频滤波 等时场束流品质 

分 类 号：O572.211[理学—粒子物理与原子核物理]