Radial Matching Section (RMS) which is the crucial part of Radio Frequency Quadru\-pole (RFQ) Linac matches a stationary input beam to the time-varying focusing of RFQ. In this paper, the theory of RMS has been examined comprehensively from the point of view of the continuity of the potential function and the electric field. A methodology has been developed to include higher order term in the RMS potential function and an improved form of the focusing profile is derived which is also verified by a multi-particle tracking code. The continuity of various focusing and vane profiles for ideal RMS is also determined.

中文翻译：

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再次提出询价的径向匹配部分

径向匹配部分（RMS）是射频四极（RFQ）直线加速器的关键部分，它将固定的输入光束与RFQ随时间变化的聚焦相匹配。本文从势函数和电场的连续性的角度全面研究了RMS理论。已经开发出一种方法，以在RMS势函数中包括高阶项，并得出聚焦轮廓的改进形式，这也由多粒子跟踪代码进行了验证。还确定了各种聚焦和叶片轮廓对于理想RMS的连续性。