Chinese Physics C > 2003, Vol. 27 > Issue(12): 1138-1141

Development of a Longitudinal Feedback Cavity for the Beam Feedback System

Department of Engineering Physics,Tsinghua University,Beijing 100084,China2 Institude of High Energy Physics,CAS,Beijing 100039,China

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Abstract：
Longitudinal beam feedback system is widely used to damp coupling bunch instability. Kicker is one of the key components of the longitudinal feedback system. A prototype cavity of longitudinal feedback kicker is developed according to the parameter of BEPCⅡ. The usage of nose cone in the kicker design increased the shunt impedance. In order to avoid the extra tapper in the storage ring, the racetrack shape beam pipe is applied in the kicker. The impedance and the bandwidth of the kicker is measured by the coaxial line impedance measurement platform and the result achieved the design goals.

References

[1]

. HUANG Gang.Study of Longitudinal Coupling Impedance Measurement and Beam Feedback System,Tsinghua University Ph.D Thesis,June 2002(in Chinese)(黄刚.清华大学博士论文,纵向耦合阻抗测量及束流反馈系统的研究,2002.6)2. Boni R ,Gallo A ,Ghigo A et al.Particle Accelerators,1996,52:95—1133. CHANG L H ,LAU W K ,YANG T T et al.Development of the RFKicker for the longitudinal feedback system at SRRC .EPAC 98 p17084. Yujong Kim,Kwon M ,Huang J Y .IEEE Transactions on nuclear science.Vol47.No.2 April 20005. HUANG Gang et al.High Energy Phys.Nucl.Phys.,2002,26(5):530(in Chinese)(黄刚等.高能物理与核物理,2002,26(5):530)6. HUANG Gang,HUANG Wen-Hui.Longitudinal Broadband Impedance Measurement System by Coaxial Line Methods.PAC2001.2060—2062

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HUANG Gang, CHEN Huai-Bi, HUANG Wen-Hui, TONG De-Chun, LIN Yu-Zheng and ZHAO Zhen-Tang. Development of a Longitudinal Feedback Cavity for the Beam Feedback System[J]. Chinese Physics C, 2003, 27(12): 1138-1141.

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Received: 2002-11-20
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Development of a Longitudinal Feedback Cavity for the Beam Feedback System

Corresponding author:HUANG Gang,

Department of Engineering Physics,Tsinghua University,Beijing 100084,China2 Institude of High Energy Physics,CAS,Beijing 100039,China

Received Date:2002-11-20
Accepted Date:1900-01-01
Available Online:2003-12-05

Abstract:Longitudinal beam feedback system is widely used to damp coupling bunch instability. Kicker is one of the key components of the longitudinal feedback system. A prototype cavity of longitudinal feedback kicker is developed according to the parameter of BEPCⅡ. The usage of nose cone in the kicker design increased the shunt impedance. In order to avoid the extra tapper in the storage ring, the racetrack shape beam pipe is applied in the kicker. The impedance and the bandwidth of the kicker is measured by the coaxial line impedance measurement platform and the result achieved the design goals.