Optimization of the collimation system for CSNS/RCS with the robust conjugate direction search algorithm

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Hong-Fei Ji, Yi Jiao, Ming-Yang Huang, Shou-Yan Xu, Na Wang and Sheng Wang. Optimization of the collimation system for CSNS/RCS with the robust conjugate direction search algorithm[J]. Chinese Physics C, 2016, 40(9): 097006. doi: 10.1088/1674-1137/40/9/097006
Hong-Fei Ji, Yi Jiao, Ming-Yang Huang, Shou-Yan Xu, Na Wang and Sheng Wang. Optimization of the collimation system for CSNS/RCS with the robust conjugate direction search algorithm[J]. Chinese Physics C, 2016, 40(9): 097006.  doi: 10.1088/1674-1137/40/9/097006 shu
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Received: 2016-03-29
Revised: 2016-05-03
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    Supported by National Natural Science Foundation of China (11475202, 11405187, 11205185) and Youth Innovation Promotion Association of Chinese Academy of Sciences (2015009)

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Optimization of the collimation system for CSNS/RCS with the robust conjugate direction search algorithm

    Corresponding author: Sheng Wang,
Fund Project:  Supported by National Natural Science Foundation of China (11475202, 11405187, 11205185) and Youth Innovation Promotion Association of Chinese Academy of Sciences (2015009)

Abstract: The Robust Conjugate Direction Search (RCDS) method is used to optimize the collimation system for the Rapid Cycling Synchrotron (RCS) of the China Spallation Neutron Source (CSNS). The parameters of secondary collimators are optimized for a better performance of the collimation system. To improve the efficiency of the optimization, the Objective Ring Beam Injection and Tracking (ORBIT) parallel module combined with MATLAB parallel computing is used, which can run multiple ORBIT instances simultaneously. This study presents a way to find an optimal parameter combination of the secondary collimators for a machine model in preparation for CSNS/RCS commissioning.

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