Effect of RFQ's Structure Parameter σ/R on Maximum Electric Field and Inter-electrode Field of RFQ
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摘要: 基于CST 微波工程软件对四杆型RFQ 的模拟运算,分析了在不同情况下不同的RFQ 结构参数σ/R与电极最大表面电场Emax 之间的关系,发现对应于不同RFQ 孔径下的最小的Emax,其结构参数σ/R 的值是不同的。同时发现改变σ/R,RFQ极间电场线性度始终保持在99.5% 以上,但σ/R 变大会微幅提升极间电场线性度。Based on the simulation on 4-rods RFQ by the CST MWS software, we analyzed the relationship between the RFQ’s structure parameter σ/R and the maximum electrode field Emax, and found that as the aperture R varies,the value of σ/R corresponding to the minimum Emax does not necessarily keep constant. We also found that the RFQ interelectrode field linearity maintains over 99.5% as σ/R veries, although it slightly increases as σ/R increases.Abstract: Based on the simulation on 4-rods RFQ by the CST MWS software, we analyzed the relationship between the RFQ’s structure parameter σ/R and the maximum electrode field Emax, and found that as the aperture R varies,the value of σ/R corresponding to the minimum Emax does not necessarily keep constant. We also found that the RFQ interelectrode field linearity maintains over 99.5% as σ/R veries, although it slightly increases as σ/R increases.
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Key words:
- RFQ /
- σ/R /
- maximum electrode field /
- inter-electrode field linearity
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