Structural analysis of quarter-wave resonators in IMP

ZHANG Cong; HE Shou-Bo; WANG Ruo-Xu; ZHANG Sheng-Hu; HE Yuan; ZHAO Hong-Wei

doi:10.1088/1674-1137/37/10/107002

Chinese Physics C> 2013, Vol. 37> Issue(10) : 107002 DOI: 10.1088/1674-1137/37/10/107002

Structural analysis of quarter-wave resonators in IMP

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Abstract：
The taper-shaped superconducting quarter wave resonators with frequency of 80.5 MHz, β of 0.041 and 0.085 have been pre-researched. The radio frequency (RF) design of the cavities has been completed, and the structural design is also an important aspect which will be discussed in the following. The frequency shift caused by the etching effects of the surface treatment, the helium bath pressure and the Lorentz force, and the mechanical modes caused by the microphonic excitation have been analyzed. The results show that the frequency variation from the Lorentz force is not serious and stiffening rings are explored aimed at decreasing the deformation brought by the helium pressure and microphonic excitation.

References

[1]

ANSYS Inc., Canonsburg, Pennsylvania, USA. www. ansys.com[2] Zaplatin E et al. Structural Analyses of MSU Quarter-Wave Resonators. In: 14th International Conference on RF Superconductivity. Berlin. 2009[3] Holzbauer J, Binkowski J, Johnson M et al. Coupled Electromagnetic and Mechanical Simulations for Half-wave Resonator Design. In: 15th International Conference on RF Superconductivity. Chicago. 2011

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ZHANG Cong, HE Shou-Bo, WANG Ruo-Xu, ZHANG Sheng-Hu, HE Yuan and ZHAO Hong-Wei. Structural analysis of quarter-wave resonators in IMP[J]. Chinese Physics C, 2013, 37(10): 107002. doi: 10.1088/1674-1137/37/10/107002

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Received: 2012-11-28
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

Structural analysis of quarter-wave resonators in IMP

Corresponding author: ZHANG Cong,

Received Date: 2012-11-28
Accepted Date: 1900-01-01
Available Online: 2013-10-05

Abstract: The taper-shaped superconducting quarter wave resonators with frequency of 80.5 MHz, β of 0.041 and 0.085 have been pre-researched. The radio frequency (RF) design of the cavities has been completed, and the structural design is also an important aspect which will be discussed in the following. The frequency shift caused by the etching effects of the surface treatment, the helium bath pressure and the Lorentz force, and the mechanical modes caused by the microphonic excitation have been analyzed. The results show that the frequency variation from the Lorentz force is not serious and stiffening rings are explored aimed at decreasing the deformation brought by the helium pressure and microphonic excitation.