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| TUPJE015 |
Beta Function Matching and Tune Compensation for HLS-II Insertion Devices |
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- B. Li, J.Y. Li, W. Xu, K. Xuan
USTC/NSRL, Hefei, Anhui, People's Republic of China
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In order to increase its brightness and improve the performance, the Hefei Light Source (HLS) was completely renovated from 2010 to the end of 2014. The magnet lattice of the new storage ring consists of four double bend achromatic (DBA) cells. There are eight straight sections which can be used to install up to 6 insertion devices (IDs). Currently, five insertion devices have been installed in the storage ring. It is known that the dynamics of the electron beam motion in the storage ring would be influenced by the insertion device, depending on its physical properties. In order to keep high performance operation of the storage ring and make the insertion device transparent to the rest of the storage ring, a complex compensation scheme is developed to match the beta functions at both ends of a ID and perform transverse tune compensation. This scheme has been integrated into the EPICS based control system of the HLS-II. The result indicates that the scheme is very effective to compensate the impact of the insertion devices.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-TUPJE015
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