Design and performance of the LLRF system for CSNS/RCS

LI Xiao; SUN Hong; LONG Wei; ZHAO Fa-Cheng; ZHANG Chun-Lin

doi:10.1088/1674-1137/39/2/027002

Chinese Physics C> 2015, Vol. 39> Issue(2) : 027002 DOI: 10.1088/1674-1137/39/2/027002

Design and performance of the LLRF system for CSNS/RCS

Abstract
HTML
Reference
Related

PDF

Abstract：
The rapid cycling synchrotron (RCS) is part of the China Spallation Neutron Source (CSNS). The RCS provides 1.6 GeV 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.

References

[1]

WANG Sheng et al. Chin. Phys. C, 2009, 33(Suppl. II): 1-3[2] WEI J et al. Nucl. Instrum. Methods A, 2009, 600: 10-13[3] SUN Hong et al. IPAC, 2013. 2765-2767[4] LI Xiao et al. IPAC, 2013. 2977-2979[5] LI Xiao. Study on the Digital Low Level RF Control System of CSNS/RCS (PhD Thesis). Beijing: Graduate University of Chinese Academy of Sciences, 2010 (in Chinese)[6] Tamura F et al. PAC, 2005. 3624-3626[7] LI Xiao et al. High Power Laser and Particle Beams, 2013, 25(10): 2671-2674 (in Chinese)

Access

Get Citation

LI Xiao, SUN Hong, LONG Wei, ZHAO Fa-Cheng and ZHANG Chun-Lin. Design and performance of the LLRF system for CSNS/RCS[J]. Chinese Physics C, 2015, 39(2): 027002. doi: 10.1088/1674-1137/39/2/027002

LI Xiao, SUN Hong, LONG Wei, ZHAO Fa-Cheng and ZHANG Chun-Lin. Design and performance of the LLRF system for CSNS/RCS[J]. Chinese Physics C, 2015, 39(2): 027002. doi: 10.1088/1674-1137/39/2/027002 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2014-04-09
Revised: 1900-01-01

Article Metric

Article Views(3335)
PDF Downloads(217)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Design and performance of the LLRF system for CSNS/RCS

Corresponding author: LI Xiao,

Received Date: 2014-04-09
Accepted Date: 1900-01-01
Available Online: 2015-02-05

Abstract: The rapid cycling synchrotron (RCS) is part of the China Spallation Neutron Source (CSNS). The RCS provides 1.6 GeV 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.

HTML

Reference (1)

Link: IOPScience; SCOAP³; arXiv; Chinese Physical Society

Journal information: Introduction; Editorial Board; Others; Subscribe

Contact us: QQ: 1307685413; Tel: +86-010-88235947; Fax: +86-010-88233126; E-mail: cpc@ihep.ac.cn

CPC Website
IOP Website
CPC WeChat

Supported by: Beijing Renhe Information Technology Co. Ltd E-mail: info@rhhz.net

DownLoad: Full-Size Img PowerPoint

Return

Design and performance of the LLRF system for CSNS/RCS

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Design and performance of the LLRF system for CSNS/RCS

Corresponding author: LI Xiao,

HTML

目录

[1]	YAN Jia-Qing , XIE Yu-Guang , HU Tao , LU Jun-Guang , ZHOU Li , QU Guo-Pu , CAI Xiao , NIU Shun-Li , CHEN Hai-Tao . Simulation and performance study of ceramic THGEM. Chinese Physics C, 2015, 39(6): 066001. doi: 10.1088/1674-1137/39/6/066001
[2]	HUANG Jiang , XIONG Yong-Qian , CHEN De-Zhi , LIU Kai-Feng , YANG Jun , LI Dong , YU Tiao-Qin , FAN Ming-Wu , YANG Bo . A permanent magnet electron beam spread system used fora low energy electron irradiation accelerator. Chinese Physics C, 2014, 38(10): 107008. doi: 10.1088/1674-1137/38/10/107008
[3]	XU Ji-Lei , GUAN Meng-Yun , YANG Chang-Gen , WANG Yi-Fang , ZHANG Jia-Wen , LU Chang-Guo , Kirk McDonald , Robert Hackenburg , Kwong Lau , Logan Lebanowski , Cullen Newsom , Lin Shih-Kai , Jonathan Link , MA Lie-Hua , Viktor Pec , Vit Vorobel , CHEN Jin , LIU Jin-Chang , ZHOU Yong-Zhao , LIANG Hao . Design and preliminary test results of Daya Bay RPC modules. Chinese Physics C, 2011, 35(9): 844-850. doi: 10.1088/1674-1137/35/9/011
[4]	PENG Quan-Ling , SUN Jian , ZHAO Guang-Yuan , SHI Cai-Tu . Principle and Software Design of Helmhotz Coil Measurement System. Chinese Physics C, 2001, 25(9): 920-925.