用束流位置监测器测量上海光源束流寿命  

Beam lifetime measurement using beam position monitor in SSRF

作　　者：阎映炳[1] 冷用斌[1] 赖龙伟[1,2] 张宁[1,2] 易星[1,2] 杨桂森[1,2] 

机构地区：[1]中国科学院上海应用物理研究所,上海201800 [2]中国科学院研究生院,北京100049

出　　处：《强激光与粒子束》2012年第1期189-192,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11075198)

摘　　要：通过理论分析研究了电磁耦合型束流位置探测器(BPM)用于束流寿命测量的可行性,并在上海光源储存环上进行了束流实验,对其性能进行了评估。实验结果表明,与目前常用的直流流强变压器(DC-CT)系统相比,BPM给出的束流寿命具有更高的带宽和分辨力,有利于进行不同时间尺度的束流寿命评估,而且可以通过多个平均的方式来进一步提高测量精度。The output signal of beam position monitor（BPM） carries not only position information but also charge information.It can reflect the changes of the beam charge and be used for beam lifetime measurement.In this paper,the feasibility of beam lifetime measurement using BPM was investigated through theoretical analysis.Some experiments were conducted on the storage ring of Shanghai Synchrotron Radiation Facility（SSRF） to evaluate the performance.Compared with the DC current transformer（DCCT） system,the lifetime measured by BPM has higher data rate and resolution.It is useful for the beam lifetime eva-luation of different time scales and the measurement accuracy can be further improved by averaging the results of multiple BPMs.

关 键 词：束流位置监测器 束流寿命 多参数束流诊断 上海光源 

分 类 号：TL506[核科学技术—核技术及应用]