Design of a low level radio frequency control system for the direct current-superconductive photocathode injector at Peking University

中国物理C, 2011, 35(10): 955-958. doi: 10.1088/1674-1137/35/10/013

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

2.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

3.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

4.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

5.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

6.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

Design of a low level radio frequency control system for the direct current-superconductive photocathode injector at Peking University

ZHANG He ^1, , WANG Fang ^2, , ZHANG Bao-Cheng ^3, , LIN Lin ^4, , HAO Jian-Kui ^5, , LIU Ke-Xin ^6,

1.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

2.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

3.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

4.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

5.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

6.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

Keywords： injector

A digital low level radio frequency (LLRF) control system based on a high precision fieldprogrammable gate array (FPGA) is being developed for the stable operation of the upgraded direct currentsuperconductive (DC-SC) photocathode injector at Peking University.The design of this LLRF control system is described,including both the hardware and the internal algorithm.Analysis of disturbances shows that the system can achieve the requirement of ±0.1％ for amplitude stability and ±0.1° for phase stability.Through experiments,preliminary results are presented in the paper.

参考文献

[1]	ZHAO Yu-Bin,YIN Cheng-Ke,ZHANG Tong-Xuan,FU Ze-Chuan,ZHAO Zhen-Tang,DAI Zhi-Min,LIU Jian-Fei,WANG Fang.Digital prototype of LLRF system for SSRF[J].中国物理C（英文版）,2008(09):758-760.

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