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

JI Hong-Fei; JIAO Yi; WANG Sheng; JI Da-Heng; YU Cheng-Hui; ZHANG Yuan; HUANG Xiao-Biao

doi:10.1088/1674-1137/39/12/127006

Chinese Physics C> 2015, Vol. 39> Issue(12) : 127006 DOI: 10.1088/1674-1137/39/12/127006

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

JI Hong-Fei ^1,3 ,
JIAO Yi ^2,3,, ,
WANG Sheng ^1,3 ,
JI Da-Heng ^2,3 ,
YU Cheng-Hui ^2,3 ,
ZHANG Yuan ^2,3 ,
HUANG Xiao-Biao ⁴

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Abstract：
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 orbital offset from optimal trajectory can be recovered with this method.
- online ,
- RCDS ,
- luminosity ,
- multivariable function

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JI Hong-Fei, JIAO Yi, WANG Sheng, JI Da-Heng, YU Cheng-Hui, ZHANG Yuan and HUANG Xiao-Biao. Feasibility study of online tuning of the luminosity in a circularcollider with the robust conjugate direction search method[J]. Chinese Physics C, 2015, 39(12): 127006. doi: 10.1088/1674-1137/39/12/127006

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Supported by National Natural Science Foundation of China (11475202, 11405187) and Youth Innovation Promotion Association of Chinese Academy of Sciences (2015009)

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沈阳化工大学材料科学与工程学院沈阳 110142

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

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

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