Abstract: The process of the calculation of pole parameters of 26MHz 1MeV O⁺ RFQ accelerator in Peking University was given. This process includes the calculation of those parameters in the main part, the radial matching section and the Crandall unit. The calculated results were given at the same time.

Key words: RFQ accelerator, Crandall unit, radial matching section, quasi-sine approximation

摘要： 介绍了北京大学26 MHz 1 MeV O⁺离子RFQ加速器电极参数的计算过程，该过程包括电极主要部分的参数、径向匹配段的参数和Crandall单元的参数计算3部分，并给出了计算结果。

关键词: RFQ加速器, Crandall单元, 径向匹配段, 准正弦近似