Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2013, Vol. 24 ›› Issue (1): 010102 doi: 10.13538/j.1001-8042/nst.2013.01.007

• SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS • Previous Articles     Next Articles

Study of algorithms of phase advance measurement between BPMs and its application in SSRF

 CHEN Zhichu, LENG Yongbin, YUAN Renxian, YAN Yingbing, ZHOU Weimin   

  1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China YUAN Renxian YAN Yingbing ZHOU Weimin
  • Received:2012-03-19
  • Supported by:

    Supported by National Natural Science Foundation of China (No.11075198)

CHEN Zhichu, LENG Yongbin, YUAN Renxian, YAN Yingbing, ZHOU Weimin. Study of algorithms of phase advance measurement between BPMs and its application in SSRF.Nuclear Science and Techniques, 2013, 24(1): 010102     doi: 10.13538/j.1001-8042/nst.2013.01.007

Abstract:

As a third generation light source, Shanghai Synchrotron Radiation Facility (SSRF) has up to 140 beam position monitors (BPM) installed to monitor the beam dynamics on its storage ring. Once the operation mode is chosen, the betatron functions are determined. Since the sinusoidal betatron oscillation is the dominant component of the transverse motion, these BPMs can be used to measure the motion to get the betatron functions. Three methods are compared to calculate the phase advance among the BPMs in this paper, aiming to find one or more feasible ways to check the beam optics in SSRF. Some experiments have also been made to verify the practicality of the phase information.

Key words: Phase advance, Storage ring, Correlation function, Discrete Fourier transform, Singular value decomposition