Tuning for the first 9-cell TESLA cavity of PKU

YANG Liu; HE Fei-Si; XU Wen-Can; ZHU Feng; LU Xiang-Yang; ZHAO Kui

doi:10.1088/1674-1137/34/4/015

Chinese Physics C> 2010, Vol. 34> Issue(4) : 496-498 DOI: 10.1088/1674-1137/34/4/015

Tuning for the first 9-cell TESLA cavity of PKU

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Abstract：
A method based on circuit model is used to tune the first home-made 9-cell TESLA type superconducting niobium cavity at Peking University. After tuning, a flat field profile with a final π-mode frequency within 3 kHz of target frequency is achieved. The field flatness is measured by a bead-pull method, and the relative electric field is calculated from the frequency shift perturbed by the bead stepping along the axis of the cavity.

References

[1]

. Hasan Padamsee et al. RF superconductivity for Accelerators. John Wiley Sons, Inc., 1998. 129-1432. Turner S. CAS CERN Accelerator School RF Engineering for Particle Accelerators, 1992, 1: 108-1103. Pozar D M. Microwave Engineering. Third Edition. Pub-lishing House of Electronics Industry, 2006. 259-2614. Cooper C. Single Iteration Tuning for Multicell RF Cavities for Cornell ERL, Research Report. Cornell University,Ithaca, 2003

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YANG Liu, HE Fei-Si, XU Wen-Can, ZHU Feng, LU Xiang-Yang and ZHAO Kui. Tuning for the first 9-cell TESLA cavity of PKU[J]. Chinese Physics C, 2010, 34(4): 496-498. doi: 10.1088/1674-1137/34/4/015

YANG Liu, HE Fei-Si, XU Wen-Can, ZHU Feng, LU Xiang-Yang and ZHAO Kui. Tuning for the first 9-cell TESLA cavity of PKU[J]. Chinese Physics C, 2010, 34(4): 496-498. doi: 10.1088/1674-1137/34/4/015 shu

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Received: 2009-06-09
Revised: 2009-07-09

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沈阳化工大学材料科学与工程学院沈阳 110142

Tuning for the first 9-cell TESLA cavity of PKU

Corresponding author: LU Xiang-Yang,

Received Date: 2009-06-09
Accepted Date: 2009-07-09
Available Online: 2010-04-05

Abstract: A method based on circuit model is used to tune the first home-made 9-cell TESLA type superconducting niobium cavity at Peking University. After tuning, a flat field profile with a final π-mode frequency within 3 kHz of target frequency is achieved. The field flatness is measured by a bead-pull method, and the relative electric field is calculated from the frequency shift perturbed by the bead stepping along the axis of the cavity.