特殊三反射镜太赫兹波段准光腔回旋管的动力学理论

Kinetic theory of a novel THZ gyrotron with three-mirror quasi-optical cavity

基于回旋管线性理论,运用Laplace变换和留数定理的方法,在线性Vlasov-Maxwell方程组的框架下,研究了特殊三反射镜准光腔回旋管的动力学理论.导出了注-波互作用功率、频偏和起振电流公式,运用MATLAB进行了数值运算.结果表明,这种回旋管工作于高次谐波状况下能有较高的互作用功率,具有工作于太赫兹波段的潜力.

Based on the linear theory of gyrotron, and using the Laplace transformation and residue theorem, the kinetic theory of a novel gyrotron with three-mirror quasi-optical cavity is developed within the framework of the linearized Vlasov-Maxwell equations. The beam-wave interaction power, frequency shift and starting current have been derived and numerically calculated. The results indicate that this novel gyrotron has high interaction power when operating at high cyclotron harmonics, and has potential application in THZ band.