Design Calculation of a Improved ECR Ion Source

XU Yong-Xing; LIU Zhan-Wen; WEI Bao-Wen

Chinese Physics C> 1991, Vol. 15> Issue(4) : 343-348

Design Calculation of a Improved ECR Ion Source

Institute of Modern Physics,Academia Sinica Lanzhou 730000

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Abstract：
The design of a ECR ion source in a working mode with a ω_ecr resonance surfaces and a 2ω_rf enclosed surface is presented.The 0.8T axial mirror field and 0.8T radial hexapole field are introduced with detailed discussions.The computational results show that the axial length of the ω_ecr resonance surface in the improved ECR ion source is extended significantly compared with the original CAPRICE one and a closed 2ω_rf equigauss surface is also formed.The new topology of the magnetic field in the improved ECR ion source will largely raise the intensity of high charged ion on the basis of the analysis of ionization mechanism.

References

[1]

刘占稳、许永兴、魏宝文,“ECR离子源原理及其磁场分析计算”,原子能科学技术,待发表.[2] F. Bouig, J. Debernardi, R. Geller et al., Workshop on the 6 th Inter. ECR Ion Source, P1, Berkeley, 1985.[3] B. Jacquot, P. Briand, F. Bourg, R. GeIler et al., Note Scientifique No,887, CENG, DRFG-PADSI.[4] R. Geller and B. Jacquot, 7 th Workshop on ECR Ion Source, P.31, Julich, 1986.[5] R. F. Holsinger, Private .Communication, Part V, P. 7,[6] 许永兴、马英杰,全国粒子加速器论文集,(1979),P. 377.[7] A. M. Window, UCRL 7784-T(1964).

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XU Yong-Xing, LIU Zhan-Wen and WEI Bao-Wen. Design Calculation of a Improved ECR Ion Source[J]. Chinese Physics C, 1991, 15(4): 343-348.

XU Yong-Xing, LIU Zhan-Wen and WEI Bao-Wen. Design Calculation of a Improved ECR Ion Source[J]. Chinese Physics C, 1991, 15(4): 343-348. shu

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Received: 1900-01-01
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

Design Calculation of a Improved ECR Ion Source

Corresponding author: XU Yong-Xing,

Institute of Modern Physics,Academia Sinica Lanzhou 730000

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1991-04-05

Abstract: The design of a ECR ion source in a working mode with a ω_ecr resonance surfaces and a 2ω_rf enclosed surface is presented.The 0.8T axial mirror field and 0.8T radial hexapole field are introduced with detailed discussions.The computational results show that the axial length of the ω_ecr resonance surface in the improved ECR ion source is extended significantly compared with the original CAPRICE one and a closed 2ω_rf equigauss surface is also formed.The new topology of the magnetic field in the improved ECR ion source will largely raise the intensity of high charged ion on the basis of the analysis of ionization mechanism.