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Upgrade Project on Top-Off Operation for Hefei Light Source |
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- W. Xu, D. Jia, S.P. Jiang, C. Li, J.Y. Li, J.G. Wang, K. Xuan, Y.L. Yang, Q.B. Zeng, X. Zhou
USTC/NSRL, Hefei, Anhui, People's Republic of China
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Hefei Light Source has successfully finished a major upgrade project and has been officially opened to users since January 2015. The upgrade project mainly includes increasing the linac injector energy from 200 MeV to 800 MeV which is the same as the ring energy, changing the ring lattice structure from TBA to DBA in order to provide more straight sections for insertion devices while keeping the circumference unchanged, and lowering the beam emittance to obtain higher photon brightness. Before the upgrade project, decay mode is the only choice for the operation of Hefei Light Source. This is because the injected beam from the linac injector needs to be ramped up to 800 MeV after injection. At prensent we have the conditions to operate Hefei Light Source with top-off mode since the linac can perform full-energy and bunch-by-bunch injection. The main challenge for the top-off operation is to control the radiation dose for personal and equipment safety, and to maintain high stability and reliability of the injector. In this paper, we report our work on the top-off operation project for Hefei Light Source.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-WEPAB064
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