磁边界效应对径向磁场中等离子体束流运动轨迹的影响

根据离子与径向磁场的约束关系,用面向对象的单元粒子法模拟了极向偏转器中等离子体束流在均匀和非均匀径向磁场中的运动情况,得到了在磁边界效应下极向偏转器内部畸变电场的分布,分析了对质量分离的影响。模拟成果对质量分离器、质谱分析仪及材料提纯等装置的研制、特殊位形电磁场控制多质量束流等相关领域的研究有参考价值。

Influence of magnetic boundary effect on the trajectory of plasma beam in radial magnetic field

According to the confinement relationship between ion and radial magnetic field, the movement of plasma beam in uniform and non-uniform radial magnetic field on plasma optical mass separation (POMS) is simulated with object-oriented particle-in-cell (OOPIC) code. The distribution of diverted electric field in the azimuthator under the magnetic boundary effect is obtained, and its effect on the mass separation is estimated. The results provide reference to the development of some devices, such as mass separator, mass spectrometer and material purification, and the research in related fields such as multi-mass beam flow control with special electromagnetic field configuration.