Performance evaluation of BPM system in SSRF using PCA method  

作　　者：陈之初 冷用斌 阎映炳 袁任贤 赖龙伟 

机构地区：[1]Shanghai Institute of Applied Physics, Chinese Academy of Sciences [2]Shanghai Synchrotron Radiation Facility, Chinese Academy of Sciences

出　　处：《Chinese Physics C》2014年第7期112-116,共5页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11075198)

摘　　要：The beam position monitor （BPM） system is of most importance in a light source. The capability of the BPM depends on the resolution of the system. The traditional standard deviation on the raw data method merely gives the upper limit of the resolution. Principal component analysis （PCA） had been introduced in the accelerator physics and it could be used to get rid of the actual signals. Beam related information was extracted before the evaluation of the BPM performance. A series of studies had been made in the Shanghai Synchrotron Radiation Facility （SSRF） and PCA was proved to be an effective and robust method in the performance evaluations of our BPM system.The beam position monitor （BPM） system is of most importance in a light source. The capability of the BPM depends on the resolution of the system. The traditional standard deviation on the raw data method merely gives the upper limit of the resolution. Principal component analysis （PCA） had been introduced in the accelerator physics and it could be used to get rid of the actual signals. Beam related information was extracted before the evaluation of the BPM performance. A series of studies had been made in the Shanghai Synchrotron Radiation Facility （SSRF） and PCA was proved to be an effective and robust method in the performance evaluations of our BPM system.

关 键 词：PCA MIA SVD storage ring SSRF 

分 类 号：O572.211[理学—粒子物理与原子核物理]