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Abstract:
The design of a ECR ion source in a working mode with a ωecr resonance surfaces and a 2ωrf 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 ωecr resonance surface in the improved ECR ion source is extended significantly compared with the original CAPRICE one and a closed 2ωrf 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.
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References
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