Orbit response matrix analysis and lattice periodicity restoration of the SSRF storage ring

In this paper, we present numerically and experimentally the linear beam-optics distortion in the SSRF storage ring and the correction of optics by using a number of quadrupole magnets installed in the storage ring. The measured orbit-response matrices were fitted to the model-response matrices to obtain the β and the dispersion functions in the storage ring. By readjusting the currents of quadrupole-magnet power supplies, we were able to successfully restore the optics parameters to values very close to the design ones, with rms deviations around 1%. This periodicity restoration is verified with the β function measurement,

作 者： CHEN Jian-hui ZHANG Man-Zhou ZHAO Zhen-Tang   作者單位： CHEN Jian-hui,ZHANG Man-Zhou(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China)

ZHAO Zhen-Tang(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China) 

刊 名： 中國物理C（英文版）  ISTIC 英文刊名： CHINESE PHYSICS　C  年，卷(期)： 2009 33(9)  分類號： O4  關鍵詞： Shanghai synchrotron radiation facility (SSRF)   orbit response matrix(ORM)   Matlab middle layer (MML)   linear optics from closed orbit (LOCO)   periodicity restoration  

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