ZHOU De-Min; WANG Jiu-Qing; HUANG Gang; ZHOU Li-Juan

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2005, Vol. 29> Issue(11) : 1081-1085

BEPCⅡ高频屏蔽波纹管纵向耦合阻抗测量和数值计算

Institute of High Energy Physics,CAS,Beijing 100049,China2 Department of Engineer Physics,Tsinghua University,Beijing 100084,China

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Abstract：
An impedance measurement system has been established to measure the longitudinal coupling impedance of vacuum components for the BEPC upgrade project(BEPCⅡ). The measurement system is based on the traditional coaxial wire methods. The measurements are done in frequency domain taking advantage of the HP/Agilent microwave vector network analyzer 8720ES. Two kinds of techniques, the TRL calibration and using a reference line, were investigated and applied to the practical measurements. This paper introduces this impedance measurement system and the results of the measurements. As a comparison, we also give the numerical simulations of the RF-shielded bellows for BEPCⅡ.

References

[1]

. BEPC ⅡDesign Report—Storage Rings: IHEP-BEPC Ⅱ-SB-03-3. 2003.11(in Chinese)(BEPC II初步设计储存环:IHEP-BEPC II-SB-03-3.2003.11)2. Sands M, Rees J. PEP-95, August, 19743. Hahn H. Phys. Rev. ST Accel. and Beams, 2000, 3: 1220014. WANG Cuang-Wei. Ph. D Dissertation, 1989(in Chinese)(王光伟.博士论文，1989)5. LENG Yong-Bin. Ph. D Dissertation, 1999(in Chinese)(冷用斌.博士论文，1999)6. HUANG Gang. Ph. D Dissertation, 2001(in Chinese)(黄刚.博士论文，2002)7. Engen G F, Hoer C A. IEEE Transaction on Microwave Theory and Techniques, 1979, MTT-27: 987—9938. Foley M et al. Proc. of the PAC 1993, 32949. Lambertson G R et al. Proc. of European Particle Accel.Conf. Nice, France, 1990. 104910. Hahn H. Phys. Rev. ST Accel. and Beams, 2004, 7: 01200111. ZHOU Li-Juan. Heating Test of the RF-Shield Bellows for BEPCⅡ. Vacuum, 2005, 42(2): 49(in Chinese)(周利娟.BEPC II储存环高频屏蔽波纹管发热实验.真空2005, 42(2): 49)12. The MAFIA Collaboration: MAFIA Manual Ver. 4.106(CST GmBH, Darmstadt, Germany, 2001)

[1]	LIU Wei-Bin , WANG Shu-Hong , YE Qiang , WANG Lin . Emittance Measurement at BEPCⅡ Linac. Chinese Physics C, 2008, 32(S1): 86-88.
[2]	WANG Guang-Wei , SHA Peng , PAN Wei-Min , SUN Yi , LI Zhong-Quan , LIU Rong , HUANG Tong-Ming , ZENG Ri-Hua , ZHAO Guang-Yuan , HUANG Hong , XU Yu-Fen , MA Qiang , LIN Hai-Ying , XU Bo , WANG Qun-Yao . Construction of the BEPCⅡ RF System. Chinese Physics C, 2008, 32(S1): 169-171.
[3]	PAN Wei-Min , ZHAO Guang-Yuan , WANG Hao , WANG Guang-Wei . Technical requirements and design of BEPCⅡ RF power source. Chinese Physics C, 2006, 30(3): 246-250.
[4]	ZHONG Juan , PAN Wei-Min . Study on the Performance of the Input Coupler for the BEPCⅡ Superconducting RF Cavity. Chinese Physics C, 2006, 30(10): 1014-1017.
[5]	JIANG Bo-Cheng , LIU Gui-Min , Dai Zhi-Min , ZHAO Zhen-Tang . Calculation of Coupling Impedance of the Injection Section for the SSRF Storage Ring. Chinese Physics C, 2006, 30(S1): 22-24.
[6]	LI Zhi-Hui , ZHENG Qi-Wen , GAO Yi-Hai , ZHANG Sheng-Hu , WU Jian-Qiang , WEN Ming , YU Qi . Numerical Simulation and Analysis of SSC RF Cavity. Chinese Physics C, 2005, 29(1): 91-94.
[7]	YU Cheng-Hui , WU Ying-Zhi , XU Gang . Coupling Compensation Scheme in BEPCⅡ. Chinese Physics C, 2005, 29(4): 418-423.
[8]	HU Chun-Liang . Beam-Based Calibration System of BPM Offset on BEPC. Chinese Physics C, 2004, 28(2): 200-204.
[9]	ZHANG Yuan . Simulation of Beam-Beam Effects in BEPC. Chinese Physics C, 2004, 28(10): 1116-1120.
[10]	LIU Yu-Dong , GUO Zhi-Yuan , WANG Jiu-Qing . Simulation of the Electron Cloud Density in BEPCⅡ. Chinese Physics C, 2004, 28(3): 222-226.
[11]	PAN Wei-Min , SUN Yi , WANG Guang-Wei , Takaaki Furuya , ichi Kurokawa . Studies on Higher Order Modes in BEPCⅡ Superconducting Cavity. Chinese Physics C, 2004, 28(3): 317-320.
[12]	ZHAO Zheng , GUO Zhi-Yuan , LIU De-Kang , MA Li , QIN Qing , WANG Jiu-Qing , XU Gang . Bunch Length Measurement of BEPC with a Streak Camera. Chinese Physics C, 2003, 27(4): 359-362.
[13]	LUO Yun , HUANG Nan , WEN Xue-Mei . Coupling Measurements and Compensation for BEPC SR Mode. Chinese Physics C, 2003, 27(5): 445-448.
[14]	HUANG Gang , HUANG Wen-Hui , CHEN Huai-Bi , ZHENG Shu-Xin , TONG De-Chun , LIN Yu-Zheng , ZHAO Zhen-Tang . Developing a Special RF Connector for Coaxial Impedance Measurement Platform. Chinese Physics C, 2002, 26(5): 530-536.
[15]	LUO Yun , GUO Zhi-Yuan , ZHANG Chuang . Analysis of an Ion Induced Coupled Bunch Instability in BEPC. Chinese Physics C, 2001, 25(3): 258-263.
[16]	DAI Jian-Ping , CHAI Xue-Dong , ZHAO Zhen-Tang . Shunt Impedance and Power of the BEPC DC Separator. Chinese Physics C, 2001, 25(7): 680-683.
[17]	MA Li , CAO JianShe , WANG Lin . Tune Measurements in the BEPC Storage Ring. Chinese Physics C, 2000, 24(8): 770-774.
[18]	Ma Li , Shi Ping , Ye Kairong . Upgrade of BPM System for the BEPC Storage Ring. Chinese Physics C, 1998, 22(5): 475-480.
[19]	BES Collaboration . τ Mass Measurement at Beijing Electron Positron Collider (BEPC). Chinese Physics C, 1992, 16(10): 865-875.
[20]	YU Qing-Chang . THE FLUID THEORY OF SELF-SUSTAINING MAGNETICALLY CONFINED ELECTRON CLOUDSⅡ.DISTRIBUTIONS OF PHYSICAL QUANTITY OF ELECTRON CLOUDS AND NUMERICAL COMPUTATIONAL METHOD. Chinese Physics C, 1990, 14(12): 1067-1072.

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Received: 2005-03-14
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

BEPCⅡ高频屏蔽波纹管纵向耦合阻抗测量和数值计算

Corresponding author: ZHOU De-Min,

Institute of High Energy Physics,CAS,Beijing 100049,China2 Department of Engineer Physics,Tsinghua University,Beijing 100084,China

Received Date: 2005-03-14
Accepted Date: 1900-01-01
Available Online: 2005-11-05

Abstract: An impedance measurement system has been established to measure the longitudinal coupling impedance of vacuum components for the BEPC upgrade project(BEPCⅡ). The measurement system is based on the traditional coaxial wire methods. The measurements are done in frequency domain taking advantage of the HP/Agilent microwave vector network analyzer 8720ES. Two kinds of techniques, the TRL calibration and using a reference line, were investigated and applied to the practical measurements. This paper introduces this impedance measurement system and the results of the measurements. As a comparison, we also give the numerical simulations of the RF-shielded bellows for BEPCⅡ.