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| MOPH08 |
Multiobjective Optimization of Dynamic Aperture at Off-axis Injection Lattice of HEPS |
43 |
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- J. Wu, Y.M. Peng, Y. Zhang
IHEP, Beijing, People's Republic of China
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The off-axis injection scheme is also considered at HEPS. A large beta insertion section is need in the case, which breaks the symmetry of the machine. We introduce two designs of the injection section. There exist clear difference for the dynamic aperture between the two designs. The low-order nonlinear resonance driving terms is calculated and compared. The results show a correlation between momentum acceptance and the off-momentum driving terms. We enlarge the dynamic aperture by tuning the on-momentum and off-momentum non-linear driving terms with a multi-objective optimization code.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-SAP2017-MOPH08
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