【摘要】 提出了基于波函数分析的有源缓变轴对称圆波导TE模式电子回旋脉塞场的展开方程,采用电磁型等离子体粒子模拟技术和有效电流分配法将电子注看作电流源,研究了归一化的电流密度方程和带电粒子运动方程,并利用单极近似和蛙跳算法在空间和时间上给出了场的变化、带电粒子的动能和位置的更新形式.阐述了理论分析过程,为数值模型奠定了基础.更多还原

【Abstract】 Based on the analysis of wave function of TE’s mode of active and axially symmetric round waveguide with gradual transition,the development equations are presented to study cyclotron resonance master(ECRM) of TE’s mode.The normalized equations of current density and motion of particles with charges are achieved by particle-in-cell(PIC) simulation of plasma of electromagnetic model and algorithm of charge-conserving current assignment,which regards electron-bean as current source.Finally,the renewal equations of field variations,kinetic energy and coordinate of particles with charges varying with time and positions are obtainde by methods of nearest-grid-point approximation and leap-frog algorithm.The theoretical part of simulation is introduced in details as foundation of the numerical simulation.更多还原