Magnets and Magnetic Field Measurements of Hefei Light Source II

Q. Luo, Y.L. Yang, G.Y. Feng, N. Chen, N. Hu, K. Tang, J. Zheng, National Synchrotron Radiation Laboratory, University of Science and Technology of China

The paper introduces magnets and magnetic field measurements of Hefei Light Source II. In the year 2012-2014, NSRL of USTC upgraded the HLS to HLS II. TheHLS II, which was built to improve the performance ofthe light source, in particular to get higher brilliance ofsynchrotron radiation and increase the number of straight section insertion devices, is now at commissioning stage. Main purpose of this stage is to achieve full energy with high current, fine emittance and enough life time based on adjustment of magnet current, RF voltage and so on. Most of the magnets were replaced during this project. A new magnetic field measurement platform was built and used for the sampling test on new magnets. Test results showed that the discreteness and uniformity of integrated magnetic field of magnets all meet the requirements.

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