R&D of an LLRF control system for a 162.5 MHz radio frequency system

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WEN Liang-Hua, WANG Xian-Wu, HE Yuan, CHANG Wei, ZHANG Rui-Feng, ZHANG Sheng-Hu, ZHU Zheng-Long, LI Chun-Long, SHI Long-Bo and ZHANG Rui. R&D of an LLRF control system for a 162.5 MHz radio frequency system[J]. Chinese Physics C, 2013, 37(8): 087004. doi: 10.1088/1674-1137/37/8/087004
WEN Liang-Hua, WANG Xian-Wu, HE Yuan, CHANG Wei, ZHANG Rui-Feng, ZHANG Sheng-Hu, ZHU Zheng-Long, LI Chun-Long, SHI Long-Bo and ZHANG Rui. R&D of an LLRF control system for a 162.5 MHz radio frequency system[J]. Chinese Physics C, 2013, 37(8): 087004.  doi: 10.1088/1674-1137/37/8/087004 shu
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Received: 2012-07-19
Revised: 1900-01-01
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R&D of an LLRF control system for a 162.5 MHz radio frequency system

Abstract: This paper describes a low level radio frequency control system that was developed by the Institute of Modern Physics Chinese Academy of Sciences, and will be used in Injector Ⅱ of the China-ADS project. The LLRF control system consists of an RF modulated front end, fast analog-to-digital converter (ADC) modules, and a digital signal processing board based on a field programmable gate array. The system has been tested on a room temperature cavity with 12-hr, and the results illustrate that the stability of amplitude and phase achieved ± 0.32% and ± 0.35 degrees, respectively.

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