Measurement and Adjustment of Dumb-Bells for 9-cell TESLA Cavity

XU Wen-Can; QUAN Sheng-Wen; HAO Jian-Kui; JIANG Tao; ZHANG Bao-Cheng; ZHAO Kui

Chinese Physics C> 2008, Vol. 32> Issue(S1) : 154-156

Measurement and Adjustment of Dumb-Bells for 9-cell TESLA Cavity

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Abstract：
Correct Dumb-bells are very important to make sure the right field flatness, frequency of TM010 mode and length of 9-cell TESLA cavity. The shape of the dumb-bells will be wrong due to deep drawing, machining and EB welding. Then, the dumb-bells should be adjusted after iris and stiffness welding according to the mechanical and microwave measurement. Peking University has set up facilities for measuring and correcting the dumb-bells. This paper discusses the method of measuring and correcting the dumb-bells.

References

[1]	. Kreps G et al. Half-Cell and Dumb-Bell Frequency Testing for the Correction of the TESLA Cavity, International Conference of RF Superconducting, 19992. Hasan Padamsee et al. RF Superconductivity for Accelerators[M]. New York: John Wiley Sons, 1998

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XU Wen-Can, QUAN Sheng-Wen, HAO Jian-Kui, JIANG Tao, ZHANG Bao-Cheng and ZHAO Kui. Measurement and Adjustment of Dumb-Bells for 9-cell TESLA Cavity[J]. Chinese Physics C, 2008, 32(S1): 154-156.

XU Wen-Can, QUAN Sheng-Wen, HAO Jian-Kui, JIANG Tao, ZHANG Bao-Cheng and ZHAO Kui. Measurement and Adjustment of Dumb-Bells for 9-cell TESLA Cavity[J]. Chinese Physics C, 2008, 32(S1): 154-156. shu

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Received: 2008-01-10
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurement and Adjustment of Dumb-Bells for 9-cell TESLA Cavity

Corresponding author: XU Wen-Can,

Received Date: 2008-01-10
Accepted Date: 1900-01-01
Available Online: 2008-01-04

Abstract: Correct Dumb-bells are very important to make sure the right field flatness, frequency of TM010 mode and length of 9-cell TESLA cavity. The shape of the dumb-bells will be wrong due to deep drawing, machining and EB welding. Then, the dumb-bells should be adjusted after iris and stiffness welding according to the mechanical and microwave measurement. Peking University has set up facilities for measuring and correcting the dumb-bells. This paper discusses the method of measuring and correcting the dumb-bells.