Multipacting analysis for half wave resonators in the China ADS

ZHANG Cong; ZHANG Sheng-Hu; HE Yuan; YUE Wei-Ming; CHANG Wei

doi:10.1088/1674-1137/39/11/117002

Chinese Physics C> 2015, Vol. 39> Issue(11) : 117002 DOI: 10.1088/1674-1137/39/11/117002

Multipacting analysis for half wave resonators in the China ADS

1.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
In the China ADS (CIADS) proton accelerator, multipacting is an issue of concern for the superconducting cavities. The parallel codes Omega3P and Track3P, developed at SLAC under the support of the DOE SciDAC program, have been used to calculate the electromagnetic field distribution and to analyze the multipacting barriers of such cavities. In this paper, two types of 162.5 MHz half wave resonator cavities, HWR-010 (cylinder type with β of 0.10) and HWR-015 (taper type with β of 0.15) have been analyzed, and the results of the multipacting analyses show that the resonant electrons occur at different regions with different accelerating gradients. The two-point 1^st order multipacting on the short plate has also been researched and discussed.
- China ADS ,
- superconducting ,
- HWR ,
- multipacting

References

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ZHANG Cong, ZHANG Sheng-Hu, HE Yuan, YUE Wei-Ming and CHANG Wei. Multipacting analysis for half wave resonators in the China ADS[J]. Chinese Physics C, 2015, 39(11): 117002. doi: 10.1088/1674-1137/39/11/117002

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Received: 2014-08-13

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Supported by National Natural Science Foundation (11221064, 91026001)

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Multipacting analysis for half wave resonators in the China ADS

Corresponding author: ZHANG Cong,

1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 2014-08-13

Available Online: 2015-11-20

Fund Project: Supported by National Natural Science Foundation (11221064, 91026001)

Abstract: In the China ADS (CIADS) proton accelerator, multipacting is an issue of concern for the superconducting cavities. The parallel codes Omega3P and Track3P, developed at SLAC under the support of the DOE SciDAC program, have been used to calculate the electromagnetic field distribution and to analyze the multipacting barriers of such cavities. In this paper, two types of 162.5 MHz half wave resonator cavities, HWR-010 (cylinder type with β of 0.10) and HWR-015 (taper type with β of 0.15) have been analyzed, and the results of the multipacting analyses show that the resonant electrons occur at different regions with different accelerating gradients. The two-point 1^st order multipacting on the short plate has also been researched and discussed.

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Multipacting analysis for half wave resonators in the China ADS

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