Author: Liu, K.F.
Paper Title Page
TUPAB129 Beam Based Alignment in a Compact THz-FEL Facility 1692
 
  • Q.S. Chen, T. Hu, K.F. Liu, B. Qin, Y.Q. Xiong
    HUST, Wuhan, People’s Republic of China
 
  In this paper, we presented the beam based alignment results in a compact THz-FEL facility. The alignment was divided into two sections, the transport line and the optical line. In the transport line, all the five quadrupoles upstream of the undulator were adjusted one by one to fit the electron beam from the traveling wave linac. In the optical line, a set of auxiliary coils were winded on the yokes of the quadrupole downstream of the double bend achromat (DBA) to produce a vertical steering force. Another combined steering magnet, together with the auxiliary coils, corrected the beam orbit in the optical line. With the dispersion free test, the displacement between the magnetic centers of the quads and the beam orbit was less than 0.1mm.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB129  
About • paper received ※ 18 May 2021       paper accepted ※ 17 June 2021       issue date ※ 27 August 2021  
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