Author: Chen, L.J.
Paper Title Page
THPTS029 Optimization of Staggered Array Undulator 4171
  • L.J. Chen, Q.K. Jia
    USTC/NSRL, Hefei, Anhui, People’s Republic of China
  • M. Li, P. Li, J. Wang, D. Wu, D.X. Xiao, L.G. Yan, X. Yang
    CAEP/IAE, Mianyang, Sichuan, People’s Republic of China
  Funding: the National Key Research and Development Program of China under Grant No. 2016YFA0402003 the National Nature Science Foundation of China under Grant No. 11611140102.
The staggered array undulator consists of staggered poles and solenoid coils that form a periodically aligned transverse magnetic field in the pole gap. The addition of magnets in the longitudinal gap between the poles further enhances the peak field strength of the undulator. A method of enhancing the peak field strength of the undulator using cryogenic temperature permanent magnets and adding side magnets has been studied. The remanence of the magnet will increase at low temperatures and the peak field strength of the undulator will increase. The side magnets do not increase the maximum peak field strength of the undulator, but can reduce the solenoid magnetic field requirements and reduce the solenoid volume and cost. The influence of the special magnetic pole and magnet shape on the peak field strength of the undulator has also been studied.
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About • paper received ※ 14 May 2019       paper accepted ※ 22 May 2019       issue date ※ 21 June 2019  
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