摘要
逐束团测量装置属于宽带和实时测量,足以分辨重复频率为204 MHz的相邻束团的信号,设计功能包括横向水平和垂直Beta振荡,纵向同步相位振荡,束团填充等信息的实时检测。对信号频谱分析,系统参数设计,前端射频检测,锁相环信号合成,高速数据采集以及基于PXI的整个系统作了详细介绍,分析了若干调试和实验结果,并讨论了合肥光源储存环目前存在的不稳定性及该测试手段在诊断中的应用。
This paper presents a newly implemented wideband（100 MHz） bunch oscillation measurement system, which is in nature different from the narrow-band （〈5 MHz） facilities employed before. Basic formalism and implementation details of the system are introduced to illustrate the function of observing coupled bunch instabilities in time and frequency domain. The designed function includes detecting of transverse oscillation, synchrotron phase oscillation, as well as bunch filling pattern. Some diagnostics results of machine instabilities and application of this system are also discussed, which well depict bunch filling mechanism, instability coupling between transverse and longitudinal directions, inherent machine damping time, as well as dominant oscillation modes.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2006年第2期286-290,共5页
High Power Laser and Particle Beams
基金
国家自然科学基金资助课题(10175063)
关键词
束流诊断
束流不稳定性
逐束团测量
射频合成和检测
Beam diagnostics
Beam instabilities
Bunch-by-bunch measurement
RF synthesis and detection
