Chinese Physics C > 2016, Vol. 40 > Issue(5): 057002 DOI: 10.1088/1674-1137/40/5/057002

Improved step-by-step chromaticity compensation method for chromatic sextupole optimization

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National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

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Abstract：
The step-by-step chromaticity compensation method for chromatic sextupole optimization and dynamic aperture increase was proposed by E. Levichev and P. Piminov(E. Levichev and P. Piminov, 2006). Although this method can be used to enlarge the dynamic aperture of a storage ring, it has some drawbacks. In this paper, we combined this method with evolutionary computation algorithms, and proposed an improved version of this method. In the improved method, the drawbacks are avoided, and thus better optimization results can be obtained.
- chromatic sextupole,
- chromaticity compensation,
- dynamic aperture,
- optimization,
- particle swarm optimization

References

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[5]	Lin Wang, Weimin Li, Guangyao Feng et al, The Upgrade Project of Hefei Light Source(HLS), in Proceedings of the 1st International Particle Accelerator Conference(Kyoto:IPAC'10 OC/ACFA, 2010), p. 2588
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Gang-Wen Liu, Zheng-He Bai, Qi-Ka Jia, Wei-Min Li and Lin Wang. Improved step-by-step chromaticity compensation method for chromatic sextupole optimization[J]. Chinese Physics C, 2016, 40(5): 057002. doi: 10.1088/1674-1137/40/5/057002

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Received: 2015-11-03
Revised: 2015-12-22

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Supported by National Natural Science Foundation of China(11175182, 11175180)

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通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Improved step-by-step chromaticity compensation method for chromatic sextupole optimization

Corresponding author:Zheng-He Bai,

1. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

Received Date:2015-11-03

Accepted Date:2015-12-22

Available Online:2016-05-05

Fund Project:Supported by National Natural Science Foundation of China(11175182, 11175180)

Abstract:The step-by-step chromaticity compensation method for chromatic sextupole optimization and dynamic aperture increase was proposed by E. Levichev and P. Piminov(E. Levichev and P. Piminov, 2006). Although this method can be used to enlarge the dynamic aperture of a storage ring, it has some drawbacks. In this paper, we combined this method with evolutionary computation algorithms, and proposed an improved version of this method. In the improved method, the drawbacks are avoided, and thus better optimization results can be obtained.

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Improved step-by-step chromaticity compensation method for chromatic sextupole optimization

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