论文部分内容阅读
对向内发射同轴虚阴极振荡器微波主频进行了解析求解,利用稳态相对论流体Maxwell方程组得到了微波主频所满足的方程;同时使用MAFIA程序的TS3模块对向内发射同轴虚阴极振荡器中波束互作用进行了全三维PIC数值模拟研究,通过对微波输出圆波导中5个传输模式的监测,得到了各模式的频谱分布及输出功率．结果表明,在有阳极反射板存在时,构成的准腔结构能够有效地改善频谱,从而提高能量转换效率．
The microwave dominant frequency of coaxial virtual cathode oscillator is solved analytically. The equations satisfied by microwave dominant frequency are obtained by Maxwell equations of steady state relativistic fluid. At the same time, using the TS3 module of MAFIA program, In this paper, the full three-dimensional PIC numerical simulation of the beam-beam interaction in the cathode oscillator is carried out. By monitoring the five transmission modes in the microwave output circular waveguide, the spectral distribution and the output power of each mode are obtained. The results show that, in the presence of an anode reflector, the quasi-cavity structure can effectively improve the spectrum and improve the energy conversion efficiency.