Analysis on the arc Phenomenon of RF Circulator

HUANG Gui-Rong; GAO Hui; LIU Gong-Fa; lshang; WANG Jin-Xiang; FENG Lan-Lin

Chinese Physics C> 2005, Vol. 29> Issue(12) : 1200-1204

Analysis on the arc Phenomenon of RF Circulator

National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029,China

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Abstract：
The characterization of the RF circulator of the Hefei Light Source is introduced. The arc phenomenon of circulator caused by RF harmonic or beam lost is analyzed in detail. In the case of the arc due to RF harmonic, the harmonic resonance on the RF transmission line has been observed from measurement. In the second case, the response of RF system to beam lost is described, and some related factors are discussed. A fast interlock circuit has been inserted into the RF system in order to protect the circulator.

References

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. WEI Ke-Zhu et al. NewMicrowave Ferrite Component. Bei-jing: National Defence Industry Press, 1995(in Chinese)(魏克珠等.微波铁氧体新器件.北京:国防上业出版社，1995)2. Temperature Compensating System. AFT Company(inGermany), Issue: Oct. 20003. LIU Chang-Nian et al. Radio Transmission Technique. Bei-jing: China Radio TV Press, 1994. 18—37(in Chinese)(刘长年等.广播发送技术.北京:中国广播电视出版社,1994.18-37)4. Gamp A. Servo Control of RF Cavities under Beam Load-ing, RF Engineering for Particle Accelerators. Exeter Col-lege, Oxford, UK, 1991, 396—4115. PAN Wei-Min, SUN Yi et al. Four-Cavity Operation at BEPC. Proceedings of 1st Workshop on RF Engineeringfor Accelerator. Mianyang: CAEP, 2000(in Chinese)(潘卫民，孙毅等.实现BEPC四腔稳定运行.第一届加速器微波高频技术研讨会会议文集.绵阳:中国上程物理研究院，2000)6. XU Hong-Liang et al. High Power Laser and ParticleBeams, 2004, 16(1): 109—112(in Chinese)(徐宏亮等.强激光与粒子束2004, 16(11: 109-1121)7. Arc Detector Operating Instruction. AFT Company(in Germany), Issue: Feb. 1997

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HUANG Gui-Rong, GAO Hui, LIU Gong-Fa, lshang, WANG Jin-Xiang and FENG Lan-Lin. Analysis on the arc Phenomenon of RF Circulator[J]. Chinese Physics C, 2005, 29(12): 1200-1204.

HUANG Gui-Rong, GAO Hui, LIU Gong-Fa, lshang, WANG Jin-Xiang and FENG Lan-Lin. Analysis on the arc Phenomenon of RF Circulator[J]. Chinese Physics C, 2005, 29(12): 1200-1204. shu

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Received: 2005-04-28
Revised: 2005-06-22

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沈阳化工大学材料科学与工程学院沈阳 110142

Analysis on the arc Phenomenon of RF Circulator

Corresponding author: HUANG Gui-Rong,

National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029,China

Received Date: 2005-04-28
Accepted Date: 2005-06-22
Available Online: 2005-12-05

Abstract: The characterization of the RF circulator of the Hefei Light Source is introduced. The arc phenomenon of circulator caused by RF harmonic or beam lost is analyzed in detail. In the case of the arc due to RF harmonic, the harmonic resonance on the RF transmission line has been observed from measurement. In the second case, the response of RF system to beam lost is described, and some related factors are discussed. A fast interlock circuit has been inserted into the RF system in order to protect the circulator.