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Phase stabilization design for radio-frequency system of the IMP HIRFL-SSC

文献类型：期刊论文

作者Cong, Yan2,3; Xu, Shaofan4; Zhou, Wenxiong1; Zhang, Ruifeng2; Li, Shilong2; Yi, Xiaoping2; Feng, Yong2; Han, Xiaodong2; Zhou, Ruihuai2; Mao, Junjie1
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
出版日期2019-05-21
卷号927页码:240-249
ISSN号0168-9002
关键词LLRF Zero pole cancellation Phase stabilization Phase modulation suppression
DOI10.1016/j.nima.2019.02.038
通讯作者Zhou, Wenxiong(zhouwenxiong@equ.edu.cn)
英文摘要The Radio Frequency (RF) system at the Heavy Ion Research Facility in Lanzhou of the Institute of Modern Physics was upgraded to a digital low-level radio frequency system. The key part is the phase and amplitude negative feedback system based on Digital Signal Processing (DSP) and a Field Programmable Gate Array (FPGA). This paper mainly introduces the design of the phase stabilization loop, including the principle designs for phase stabilization, loop filter design, parameter calculation, and hardware. In order to improve the performance and stability of the system, the loop filter was designed by means of zero-pole cancellation. In this paper, the derivation of the "zero pole cancellation method'' is introduced in detail. The implementation structure of the loop filter in the FPGA is an ingenious design that can be applied to RF systems with different cavity loaded quality factor (Q(L)) values. For different RF systems, the parameters of proportional integral (PI) algorithm are fixed, and only one parameter Q(L) needs to be set. An economical compensation method for the temperature drift in the pick-up cables was designed to improve the control accuracy of the system. The phase control system was tested in long-term stability experiments, and the results show that the system has excellent phase stability over the long term, as well as parasitic phase modulation suppression.
资助项目National Natural Science Foundation of China[11505252] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS研究方向Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000462142700032
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://119.78.100.186/handle/113462/134206]  
专题中国科学院近代物理研究所
通讯作者Zhou, Wenxiong
作者单位1.Chongqing Univ, Minist Educ, Lab Low Grade Energy Utilizat Technol & Syst, Chongqing 400044, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
3.Huizhou Ion Sci Res Ctr, Huizhou 516000, Peoples R China
4.Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Cong, Yan,Xu, Shaofan,Zhou, Wenxiong,et al. Phase stabilization design for radio-frequency system of the IMP HIRFL-SSC[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2019,927:240-249.
APA Cong, Yan.,Xu, Shaofan.,Zhou, Wenxiong.,Zhang, Ruifeng.,Li, Shilong.,...&Mao, Junjie.(2019).Phase stabilization design for radio-frequency system of the IMP HIRFL-SSC.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,927,240-249.
MLA Cong, Yan,et al."Phase stabilization design for radio-frequency system of the IMP HIRFL-SSC".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 927(2019):240-249.

入库方式： OAI收割

来源：近代物理研究所

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