| Design and performance of the LLRF system for CSNS/RCS |
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| 作者姓名： | 李晓 孙虹 龙巍 赵发成 张春林 |
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| 作者单位： | Institute of High Energy Physics Dongguan Campus, Chinese Academy of Sciences, Dongguan 523803, China |
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| 基金项目： | Supported by National Natural Science Foundation of China(11175194) |
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| 摘 要： | The rapid cycling synchrotron(RCS) is part of the China Spallation Neutron Source(CSNS). The RCS provides 1.6 Ge V protons with a repetition rate of 25 Hz. The RF system in RCS is mainly composed of a ferrite loaded RF cavity, a high power tetrode amplifier, a bias supply of 3300 A and a digital low level RF(LLRF) system based on FPGA. The major challenge of the LLRF system is to solve problems caused by rapid frequency sweeping and the heavy beam loading effect. A total of eight control loops are applied to ensure the normal operation. An effective feedforward scheme is widely used to improve the dynamic performance of the system. The design of the LLRF system and high power integration test results with the prototype RF system are presented.
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| 关 键 词： | LLRF CSNS RCS RF |
| 收稿时间： | 2014-4-9 |
Design and performance of the LLRF system for CSNS/RCS |
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| LI Xiao;SUN Hong;LONG Wei;ZHAO Fa-Cheng;ZHANG Chun-Lin.Design and performance of the LLRF system for CSNS/RCS[J].High Energy Physics and Nuclear Physics,2015,39(2):71-75. |
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| Authors: | LI Xiao;SUN Hong;LONG Wei;ZHAO Fa-Cheng;ZHANG Chun-Lin |
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| Institution: | LI Xiao;SUN Hong;LONG Wei;ZHAO Fa-Cheng;ZHANG Chun-Lin;Institute of High Energy Physics Dongguan Campus, Chinese Academy of Sciences; |
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