注-波互作用的时域PIC数值模拟

Numerical Calculation of Beam-Wave Interaction with PIC in Time-Domain

针对螺旋线行波管的注-波互作用过程,依据等效线路模型和动力学方程,采用粒子模拟方法进行时域计算,并给出部分主要的数值求解结果。本文的仿真结果基本与现有软件的模拟结果一致,同时针对由于计算模型不同而产生的计算偏差,给出了深入的分析,为后续的研究工作奠定了重要的基础。

Aiming at the beam-wave interaction in the helix TWTA,some of the main calculation results which were based on the loss transmission line model and kinetics equation with the particle-in-cell technic in the time domain were shown in the paper.Comparison of the software which has been released,it is apparent to see the two results were consistent. Later the analysis for the difference of the two models and the difference of calculations were given.These research will be the important foundation of the next work.