RF characters study of a pick-up parallel-setting HOM coupler

LUO Xing; LU Xiang-Yang; WANG Fang

Chinese Physics C> 2010, Vol. 34> Issue(12) : 1874-1878

RF characters study of a pick-up parallel-setting HOM coupler

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Abstract：
A pick-up parallel-setting high order mode coupler (pps-HOM coupler) has been fabricated at Peking University. It has been tested on a coaxial transmission line and a 2-cell TESLA-shape copper cavity. The test result of the 2-cell TESLA cavity shows that the coupler can cut off the fundamental mode TM₀₁₀ and absorb HOMs electively. As its RF properties are insensitive to the probe dip length, there is no need to adjust the probe repeatedly during practical operation.

References

[1]

Padamsee H,Knobloch J,Hays T.RF Superconductivity for Accelerators.New York:John Wiley Sons,Inc.,1998.342[2] Sekutowicz J.Higher Order Mode Coupler for TESLA.Proceedings of 6th workshop on SRF.Virginia:1993.1-14[3] WANG Fang,WANG Er-Dong,ZHANG Bao-Cheng et al.Chinese Physics C,2009,33(6):440[4] Sekutowicz J,Ko K,Ge L et al.Design of a Low Loss SRF Cavity for the ILC.Proceedings of 2005 Particle Accelerator Conference Tennessee,2005.3342-3344[5] WANG Er-Dong,WANG Fang,ZHANG Bao-Cheng et al.Chinese Physics C,2009,33(5):401

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LUO Xing, LU Xiang-Yang and WANG Fang. RF characters study of a pick-up parallel-setting HOM coupler[J]. Chinese Physics C, 2010, 34(12): 1874-1878.

LUO Xing, LU Xiang-Yang and WANG Fang. RF characters study of a pick-up parallel-setting HOM coupler[J]. Chinese Physics C, 2010, 34(12): 1874-1878. shu

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Received: 2010-01-13
Revised: 2010-03-13

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沈阳化工大学材料科学与工程学院沈阳 110142

RF characters study of a pick-up parallel-setting HOM coupler

Corresponding author: LU Xiang-Yang,

Received Date: 2010-01-13
Accepted Date: 2010-03-13
Available Online: 2010-12-05

Abstract:

A pick-up parallel-setting high order mode coupler (pps-HOM coupler) has been fabricated at Peking University. It has been tested on a coaxial transmission line and a 2-cell TESLA-shape copper cavity. The test result of the 2-cell TESLA cavity shows that the coupler can cut off the fundamental mode TM₀₁₀ and absorb HOMs electively. As its RF properties are insensitive to the probe dip length, there is no need to adjust the probe repeatedly during practical operation.