Design and simulation of a new type of 500 MHz single-cell superconducting RF cavity

This paper illustrates the design and simulation of a unique 500 MHz single-cell superconducting radio frequency cavity with a fluted beam pipe and a coaxial-type fundamental power coupler. The simulation results show that the cavity has a high r/Q value, a low peak surface field and a large beam ap...

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Bibliographic Details
Published inChinese physics C Vol. 36; no. 5; pp. 447 - 451
Main Author 陆昌旺 刘建飞 侯洪涛 马震宇 毛冬青 封自强 赵申杰 罗琛 赵玉彬 张志刚 郑湘 韦业龙 于海波 李正 徐凯
Format Journal Article
LanguageEnglish
Published 01.05.2012
Subjects
Accelerators
Beams (radiation)
Holes
Joining
Quality factor
Radio frequencies
Simulation
Superconductivity
仿真结果
单细胞
同轴型
无线电频率
设计
质量因素
超导
高频腔
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ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/36/5/012

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Summary:This paper illustrates the design and simulation of a unique 500 MHz single-cell superconducting radio frequency cavity with a fluted beam pipe and a coaxial-type fundamental power coupler. The simulation results show that the cavity has a high r/Q value, a low peak surface field and a large beam aperture, so it can be a candidate cavity for high current accelerators. With the help of a fluted beam tube, almost all the higher order modes can propagate out of the cavity, especially the first two dipole modes, TE 111 and TM 110 , and the first higher monopole mode, TM 011 . The external quality factor of the coaxial fundamental power coupler is optimized to 1.2 × 10 5 , which will be useful when it is applied in the light source storage ring.
Bibliography:11-5641/O4
LU Chang-Wang1,2,3 LIU Jian-Fei 1,3;1） HOU Hong-Tao1,3 MA Zhen-Yu1,3 MAO Dong-Qing1,3 FENG Zi-Qiang 1,3 ZHAO Shen-Jie 1,3 LUO Chen1,3 ZHAO Yu-Bin 1,3 ZHANG Zhi-Gang1,2,3 ZHENG Xiang1,3 WEI Ye-Long1,2,3 YU Hai-Bo1,2,3 LI Zheng1,3 XU Kai1,3 1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3 Shanghai Key Laboratory of Cryogenics ＆ Superconducting RF Technology, Shanghai 201800, China
This paper illustrates the design and simulation of a unique 500 MHz single-cell superconducting radio frequency cavity with a fluted beam pipe and a coaxial-type fundamental power coupler. The simulation results show that the cavity has a high r/Q value, a low peak surface field and a large beam aperture, so it can be a candidate cavity for high current accelerators. With the help of a fluted beam tube, almost all the higher order modes can propagate out of the cavity, especially the first two dipole modes, TE 111 and TM 110 , and the first higher monopole mode, TM 011 . The external quality factor of the coaxial fundamental power coupler is optimized to 1.2 × 10 5 , which will be useful when it is applied in the light source storage ring.
500 MHz superconducting cavity; higher order modes; input coupler; simulation
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/36/5/012