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本文利用自洽非线性理论对回旋速调管放大器中的电子注-波互作用进行了时域瞬态分析,建立了多腔回旋速调管非线性理论,给出了相应的电子运动方程和复数形式的互作用瞬态场方程.探讨了调制腔、中间腔、和输出腔中注-波互作用的模型和研究方法,考虑了电子速度零散对注-波互作用的影响.最后利用FORTRAN语言给出并分析了一支Kα波段四腔回旋速调管注-波互作用的数值计算结果,经与实验值和PIC模拟结果相比较,三者较为符合.
In this paper, the time-domain transient analysis of the electron-wave interaction in the gyro klystron amplifier is carried out by using the self-consistent nonlinear theory. The nonlinear theory of the multi-cavity gyroklystron is established. The corresponding electron equation of motion and The complex transient field equations are discussed.The model and the research method of the injection-wave interaction in the modulation cavity, the intermediate cavity and the output cavity are discussed, and the influence of the scattered electron velocity on the interaction between the injection and the wave is considered.Finally, The numerical results of a Kα-band four-cavity gyroscopic klystron are given and analyzed. Compared with the experimental results and PIC simulation results, the three are in good agreement.