Author: Wang, W.
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THPMK135 Corrector Layout Optimization Using NSGA-II for HALS 4629
 
  • D.R. Xu, Z.H. Bai, L. Wang, W. Wang, H. Xu
    USTC/NSRL, Hefei, Anhui, People's Republic of China
 
  In this paper, we present a method to find the global optimum correctors layout based NSGA-II algorithm when the number of correctors is limited to be equal to the number of BPMs. We prove that this method works well with HALS.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPMK135  
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THPML127 Alignment and Installation for the FELiChEM project 4977
 
  • W. Wang, Zhang, H.T. H.T, X.Y. He, D.R. Xu
    USTC/NSRL, Hefei, Anhui, People's Republic of China
 
  Funding: Work supported by National Natural Science Foundation of China (11705199) and China Postdoctoral Science Foundation (2017M622024)
FELiChEM is a new experimental facility under construction at the University of Science and Technology of China. There are more than one hundred important devices to construct it, which core device is two free electron laser oscillators generating middle-infrared and far-infrared laser and covering the spectral range of 25-200μm. The optical cavity is an important component of oscillator which very sensitive to misalignment errors of the mirror, due to its near-concentric and symmetric structure. High precision alignment and installation is necessary to ensure the smooth implementation of the FELiChEM project. Laser tracker and Level are used to install this devices according to the alignment control network. An efficient and high-precision alignment method based on autocollimator and photoelectric auto-collimator is used to align optical cavity of oscillator. This methods is proven to be effective and meet the tolerances by multiple means.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPML127  
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