| HLS Ⅱ横向束流反馈系统条带激励器的设计与计算 |
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| 引用本文： | 栗武斌,周泽然,孙葆根,吴芳芳,卢平,杨永良.HLS Ⅱ横向束流反馈系统条带激励器的设计与计算[J].原子能科学技术,2013,47(7):1250-1255. |
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| 作者姓名： | 栗武斌 周泽然 孙葆根 吴芳芳 卢平 杨永良 |
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| 作者单位： | 中国科学技术大学 国家同步辐射实验室 核科学技术学院，安徽 合肥230029 |
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| 摘 要： | 合肥光源升级改造（HLS Ⅱ）将使用数字逐束团横向束流反馈系统来抑制束团耦合不稳定性。本文设计了条带型横向激励器，利用Poisson程序计算了横向激励器的特性阻抗和电场，采用回归方程及最小二乘法分析了特性阻抗随横截面结构参数的变化规律，并做了优化选择以匹配50 Ω的外部传输电缆。利用HFSS程序对横向激励器的分路阻抗及功率输入端口的反射系数进行了模拟计算。仿真和计算结果为横向激励器的设计提供了依据。
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| 关 键 词： | 横向束流反馈系统 激励器 阻抗匹配 分路阻抗 |
Design and Simulation of Stripline Kicker for HLS Ⅱ Transverse Feedback System |
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| LI Wu-bin,ZHOU Ze-ran,SUN Bao-gen,WU Fang-fang,LU Ping,YANG Yong-liang.Design and Simulation of Stripline Kicker for HLS Ⅱ Transverse Feedback System[J].Atomic Energy Science and Technology,2013,47(7):1250-1255. |
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| Authors: | LI Wu-bin ZHOU Ze-ran SUN Bao-gen WU Fang-fang LU Ping YANG Yong-liang |
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| Affiliation: | National Synchrotron Radiation Laboratory & School of Nuclear Science and Technology,University of Science and Technology of China, Hefei 230029, China |
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| Abstract: | A new digital bunch-by-bunch transverse feedback system will be used in the upgrade project of Hefei Light Source (HLS Ⅱ) to suppress the coupled bunch instabilities in the storage ring. Therefore, a new stripline transverse feedback kicker was designed in this paper. The calculations of the characteristic impedance and the electric field of the kicker were carried out by the Poisson code. The variation of characteristic impedance versus the cross-sectional structure parameters was analyzed by using the regression equation and the least squares method, and the 50 Ω external transmission line was matched through the optimal choice. The shunt impedance and the reflection coefficient were obtained by the HFSS code. Simulation and calculation results provide important supports for the structure design. |
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| Keywords: | transverse feedback system kicker impedance match shunt impedance |
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