Design of a 450 MHz β=0.2 single spoke cavity at PKU

YAO Zhong-Yuan; LU Xiang-Yang; ZHAO Kui

doi:10.1088/1674-1137/33/4/011

Chinese Physics C> 2009, Vol. 33> Issue(4) : 292-296 DOI: 10.1088/1674-1137/33/4/011

Design of a 450 MHz β=0.2 single spoke cavity at PKU

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Abstract：
The design of a 450 MHz β=0.2 superconducting single spoke cavity has been finished at Peking University. A theoretical model and a numerical simulation are used to study the relationship between the RF performance and the geometric parameters of the cavity. In this paper, the optimization of the spoke cavity is described in detail. The RF simulation gives the optimum parameters E_pk/E_acc of 2.65 and B_pk/E_acc of 5.22 mT/(MV/m). The mechanical properties of the cavity are also studied. Two stiff ribs are used to offer a credible mechanical stability.

References

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. Shepard K W, Ostroumov P N, Delayen J R. Phys. Rev.ST. Accel. Beams, 2003, 6: 0801012. Ostroumov P N, Fuerst J D, Kelly M P et al. Acceleratorsfor the Advanced Exotic Beam Facility in the U.S. Pro-ceedings of the 2007 Particle Accelerator Conference. USA:Institute of Electrical and Electronics Engineers, Inc., 2007.1664-16663. Bousson S, Biarrotte J L et al. Spoke Cavity Developments for the Eurisol Driver. Proceedings of the 2006 Linear Ac-celerator Conference. USA: Joint Accelerator ConferencesWebsite, 2006. 704-7064. Kelly M. Status of Superconducting Spoke Cavity Develop-ment. Proceedings of the 13th International Workshop on RF Superconductivity. China: Peking University, 20075. Delayen J R. Low and Intermediate Beta Cavity Design.Proceeding of the 13th International Workshop on RF Su-perconductivity. China: Peking University, 20076. Krawczyk F L, Garnett R, LaFave R P et al. Design of aLow-β , 2-gap Spoke Resonator for the AAA Project. Pro-ceedings of the 2001 Particle Accelerator Conference. USA:Institute of Electrical and Electronics Engineers, Inc., 2001.906-9087. ZHU Feng. Researches on Surface Treatment of RF Su-perconducting Cavities and Design of a SuperconductingSpoke Cavity. Beijing: Peking University, 2004. 59-83 (inChinese)8. Apollinari G, Gonin I, Khabiboulline T et al. IEEE Trans-actions on Applied Superconductivity, 2007, 17(2): 13229. Olry G, Biarrotte J L, Junquera T et al. Design and In-dustrial Fabrication of β=0.35 Spoke-type Cavity. Proceed-ings of the 8th European Particle Accelerator Conference.France: European Physical Society Interdivisional Groupon Accelerators and CERN, 2002. 2271-2273

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YAO Zhong-Yuan, LU Xiang-Yang and ZHAO Kui. Design of a 450 MHz β=0.2 single spoke cavity at PKU[J]. Chinese Physics C, 2009, 33(4): 292-296. doi: 10.1088/1674-1137/33/4/011

YAO Zhong-Yuan, LU Xiang-Yang and ZHAO Kui. Design of a 450 MHz β=0.2 single spoke cavity at PKU[J]. Chinese Physics C, 2009, 33(4): 292-296. doi: 10.1088/1674-1137/33/4/011 shu

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Received: 2008-06-05
Revised: 2008-07-30

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沈阳化工大学材料科学与工程学院沈阳 110142

Design of a 450 MHz β=0.2 single spoke cavity at PKU

Corresponding author: LU Xiang-Yang,

Received Date: 2008-06-05
Accepted Date: 2008-07-30
Available Online: 2009-04-05

Abstract:

The design of a 450 MHz β=0.2 superconducting single spoke cavity has been finished at Peking University. A theoretical model and a numerical simulation are used to study the relationship between the RF performance and the geometric parameters of the cavity. In this paper, the optimization of the spoke cavity is described in detail. The RF simulation gives the optimum parameters E_pk/E_acc of 2.65 and B_pk/E_acc of 5.22 mT/(MV/m). The mechanical properties of the cavity are also studied. Two stiff ribs are used to offer a credible mechanical stability.