Analysis of the impacts of mechanical errors on the RF performance of a single spoke cavity

YAO Zhong-Yuan; LU Xiang-Yang; ZHANG Bao-Cheng; QUAN Sheng-Wen; HE Fei-Si; ZHAO Kui

doi:10.1088/1674-1137/34/5/012

Chinese Physics C> 2010, Vol. 34> Issue(5) : 576-579 DOI: 10.1088/1674-1137/34/5/012

Analysis of the impacts of mechanical errors on the RF performance of a single spoke cavity

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Abstract：
Mechanical errors can not be avoided in fabrication. They will cause geometry errors and have impacts on the cavity performance. This paper systematically analyzes the impacts of mechanical errors on the RF performance of Peking University single spoke cavity. The various kinds of shape and size errors are considered, the influences on the resonation frequency and field flatness are studied by numerical simulation and the theoretical models are analyzed. The results show that the single spoke cavity is robust with respect to the mechanical tolerance. It also indicates the most essential factors for fabrication.

References

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. YAO Z Y, LU X Y, ZHAO K. Chinese Physics C, 2009,33(04): 292-2962. Cooper C. Single Iteration Tuning for Multicell RF Cavi-ties for Cornell ERL. Research Report, Cornell University,Ithaca, 20033. Padamsee H, Knobloch J, Hays T. RF Superconductivityfor Accelerators. New York: John Wiley Sons, Inc., 1998,137-1404. Klein H. Basic Conception I. In: S.Turner ed. Proceedingof CAS - CERN Accelerator School and Rutherford Ap-pleton Laboratory: Course on RF Engineering for ParticleAccelerators. Oxford: CERN. 1991, 108-1105. Pozar D. Microwave Engineering (Third Edition). NewYork: John Wiley Sons, Inc., 2005, 298-303

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YAO Zhong-Yuan, LU Xiang-Yang, ZHANG Bao-Cheng, QUAN Sheng-Wen, HE Fei-Si and ZHAO Kui. Analysis of the impacts of mechanical errors on the RF performance of a single spoke cavity[J]. Chinese Physics C, 2010, 34(5): 576-579. doi: 10.1088/1674-1137/34/5/012

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Received: 2009-07-15
Revised: 2009-11-16

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沈阳化工大学材料科学与工程学院沈阳 110142

Analysis of the impacts of mechanical errors on the RF performance of a single spoke cavity

Corresponding author: YAO Zhong-Yuan,

Received Date: 2009-07-15
Accepted Date: 2009-11-16
Available Online: 2010-05-05

Abstract:

Mechanical errors can not be avoided in fabrication. They will cause geometry errors and have impacts on the cavity performance. This paper systematically analyzes the impacts of mechanical errors on the RF performance of Peking University single spoke cavity. The various kinds of shape and size errors are considered, the influences on the resonation frequency and field flatness are studied by numerical simulation and the theoretical models are analyzed. The results show that the single spoke cavity is robust with respect to the mechanical tolerance. It also indicates the most essential factors for fabrication.