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Chinese Physics C> 2012, Vol. 36> Issue(5) : 447-451 DOI: 10.1088/1674-1137/36/5/012

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 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, TE111 and TM110, and the first higher monopole mode, TM011. The external quality factor of the coaxial fundamental power coupler is optimized to 1.2×105, which will be useful when it is applied in the light source storage ring.
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  • References

    [1] Dykes D M, Mcintosh P A, Poole M W et al. Supercon- ducting RF Systems for Light Sources, Vol. 1 Proceedings of EPAC 2000, Vienna, Austria. 20342 Takahashi T et al. Proc. 9th Symposium on Accelerator Scie. and Tech., Tukuba, Japan, 1993. 3273 Noguch S, Kako E, Kubo K. Proc. 4thWorkshop on RF Su- perconductivity, Proceedings of EPAC 2000. Vienna, Aus- tria. 2000 1: 3934 Belomestnykh S et al. Comparison of the Predicted and Measured Loss Factor of the Superconducting Cavity As- sembly for the CESR Upgrade, presented at the 1995 Parti- cle Accelerator Conference, Dallas, TX, May 1995, also Re- port SRF 950406-04 Cornell Laboratory of Nuclear Studies, Ithaca, NY (April 1995)5 Belomestnykh S, Padamsee H. Performance of the CESR Superconducting RF System and Future Plans. Proceed- ings of the 10th Workshop on RF Superconductivity. Tsukuba, Japan, September 20016 LI Zhong-Quan, ZHANG Chuang. HEP NP, 2003,27(10): 920 (in Chinese)7 LI Zhong-Quan. Study of Structure Optimization of SC RF Cavity in BEPC/ (ph. D. thesis). 2003, 55 (in Chinese)8 Padamsee H et al. Particle Accelerators, 1992, 40: 17-449 HUANG Tong-Ming, PAN Wei-Min, WANG Guang-Wei et al. HEP NP, 2008, 32(1): 72-7410 Padamsee H. RF Superconducting for Accelerators. New York: John Wiley Inc., 199811 LI Ying-Min, SUN An, ZHANG Li-Ping. Multipac 2.1 - Multipacting Simulation Package With A 2D Fem Field Solver For A Microsoft Windows System. Proceedings of EPAC08. Genoa, Italy

  • References

    [1] Dykes D M, Mcintosh P A, Poole M W et al. Supercon- ducting RF Systems for Light Sources, Vol. 1 Proceedings of EPAC 2000, Vienna, Austria. 20342 Takahashi T et al. Proc. 9th Symposium on Accelerator Scie. and Tech., Tukuba, Japan, 1993. 3273 Noguch S, Kako E, Kubo K. Proc. 4thWorkshop on RF Su- perconductivity, Proceedings of EPAC 2000. Vienna, Aus- tria. 2000 1: 3934 Belomestnykh S et al. Comparison of the Predicted and Measured Loss Factor of the Superconducting Cavity As- sembly for the CESR Upgrade, presented at the 1995 Parti- cle Accelerator Conference, Dallas, TX, May 1995, also Re- port SRF 950406-04 Cornell Laboratory of Nuclear Studies, Ithaca, NY (April 1995)5 Belomestnykh S, Padamsee H. Performance of the CESR Superconducting RF System and Future Plans. Proceed- ings of the 10th Workshop on RF Superconductivity. Tsukuba, Japan, September 20016 LI Zhong-Quan, ZHANG Chuang. HEP NP, 2003,27(10): 920 (in Chinese)7 LI Zhong-Quan. Study of Structure Optimization of SC RF Cavity in BEPC/ (ph. D. thesis). 2003, 55 (in Chinese)8 Padamsee H et al. Particle Accelerators, 1992, 40: 17-449 HUANG Tong-Ming, PAN Wei-Min, WANG Guang-Wei et al. HEP NP, 2008, 32(1): 72-7410 Padamsee H. RF Superconducting for Accelerators. New York: John Wiley Inc., 199811 LI Ying-Min, SUN An, ZHANG Li-Ping. Multipac 2.1 - Multipacting Simulation Package With A 2D Fem Field Solver For A Microsoft Windows System. Proceedings of EPAC08. Genoa, Italy

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LU Chang-Wang, LIU Jian-Fei, HOU Hong-Tao, MA Zhen-Yu, MAO Dong-Qing, FENG Zi-Qiang, ZHAO Shen-Jie, LUO Chen, ZHAO Yu-Bin, ZHANG Zhi-Gang, ZHENG Xiang, WEI Ye-Long, YU Hai-Bo, LI Zheng and XU Kai. Design and simulation of a new type of 500 MHz single-cell superconducting RF cavity[J]. Chinese Physics C, 2012, 36(5): 447-451. doi: 10.1088/1674-1137/36/5/012
LU Chang-Wang, LIU Jian-Fei, HOU Hong-Tao, MA Zhen-Yu, MAO Dong-Qing, FENG Zi-Qiang, ZHAO Shen-Jie, LUO Chen, ZHAO Yu-Bin, ZHANG Zhi-Gang, ZHENG Xiang, WEI Ye-Long, YU Hai-Bo, LI Zheng and XU Kai. Design and simulation of a new type of 500 MHz single-cell superconducting RF cavity[J]. Chinese Physics C, 2012, 36(5): 447-451.  doi: 10.1088/1674-1137/36/5/012 shu
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Received: 2011-08-19
Revised: 2011-08-30
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Design and simulation of a new type of 500 MHz single-cell superconducting RF cavity

  • Received Date: 2011-08-19
  • Accepted Date: 2011-08-30
  • Available Online: 2012-05-05

Abstract: 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, TE111 and TM110, and the first higher monopole mode, TM011. The external quality factor of the coaxial fundamental power coupler is optimized to 1.2×105, which will be useful when it is applied in the light source storage ring.

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