Quantitative Analysis of Coupler Tuning

ZHENG Shu-Xin; CUI Yu-Peng; CHEN Huai-Bi; XIAO Li-Ling

Chinese Physics C> 2001, Vol. 25> Issue(1) : 61-68

Quantitative Analysis of Coupler Tuning

Accelerator Laboratory, Engineering Physics Department, Tsinghua University, Beijing 100084 China

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Abstract：
This paper deduces the equation of coupler frequency deviation Δf and coupling coefficient β instead of only giving the adjusting direction in the process of matching coupler, on the basis of coupling-cavity chain equivalent circuits model. According to this equation, automatic measurement and quantitative display are realized on a measuring system. It contributes to industrialization of traveling-wave accelerators for large container inspection systems.

References

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Westbrook E. Miers Impedance Matching of Feed Waveguides to the Disk–Loaded Accelerator Structure Operatingin the 2π/3 Mode. SLAC–TN–63–103, 19632 Marie Chanudet. Matching of the Coupler Cavity to Travelling Wave Structures at Any Operating Mode. LAL/RT93–06, June, 19933 LUO Jing–Shao, GAO Mei–Yi, ZHOU Wen–Zhen et al. Matching of Voupler Used in a Linear Electron Accelerator oDisk–loaded Waveguides. In: proceeding of 1979 Accelerator Technology Symposium 1980. 163–169 (in Chinese)(罗景韶,高美亿,周文正等. 电子直线加速器盘荷波导耦合器的匹配.见:1979年全国加速器技术交流会论文选集.1980.163—169) 4 CAI Hong–Cheng. Experimental Research on Coupler Matching and Field Distribution Measurement. Master Thesis oTsinghua University. 1982 (in Chinese)(蔡鸿程.耦合器和盘荷波导的匹配及场分布测量的实际研究清华大学硕士学位论文.1982) 5 Electron Linac Group of IHEP. Measurement and Tuning of Model of 1. l/1. 4GeV electron linac and Pre–acceleratingAccelerator. In: Proceeding of linac Technology and Application Symposium. Beijing, 1985 (in Chinese)(中国科学院高能所电子直线室1.1/1.4GeV电子直线加速器的模型段及预加速器的测试和调配见:全国直线加速器技术及应用学术交流会论文集北京,1985) 6 WANG De–Fa, JIN Kai et al. Tuning and Matching of Disk–loaded Waveguides and Coupler. In: Linac Technology andApplication Symposium. Beijing, 1985 (in Chinese)(王德法,金凯等. 盘荷波导加速管和耦合器的调整与匹配见:全国直线加速器技术及应用学术交流会论文集北京,1985)7 CUI Yu–Peng. Measurement and Analysis System of Vector Network for Tuning and Matching of Accelerating Tube.Master Thesis of Tsinghua University. 1999 (in Chinese)(崔宇鹏.加速管调配的失网测试及分析系统清华大学硕士学位论文.1999)

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ZHENG Shu-Xin, CUI Yu-Peng, CHEN Huai-Bi and XIAO Li-Ling. Quantitative Analysis of Coupler Tuning[J]. Chinese Physics C, 2001, 25(1): 61-68.

ZHENG Shu-Xin, CUI Yu-Peng, CHEN Huai-Bi and XIAO Li-Ling. Quantitative Analysis of Coupler Tuning[J]. Chinese Physics C, 2001, 25(1): 61-68. shu

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Received: 1999-12-16
Revised: 1900-01-01

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