Feasibility study of online tuning of the luminosity in a circular collider with the robust conjugate direction search method

  title={Feasibility study of online tuning of the luminosity in a circular collider with the robust conjugate direction search method},
  author={Hongfei Ji and Yi Jiao and Sheng Wang and Daheng Ji and Chenghui Yu and Yuan Zhang and Xiao-Biao Huang},
  journal={arXiv: Accelerator Physics},
The robust conjugate direction search (RCDS) method has high tolerance to noise in beam experiments. It has been demonstrated that this method can be used to optimize the machine performance of a light source online. In our study, taking BEPCII as an example, the feasibility of online tuning of the luminosity in a circular collider is explored, through numerical simulation and preliminary online experiments. It is shown that the luminosity that is artificially decreased by a deviation of beam… 
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