径向渡越时间振荡器互作用特性的流体理论分析  

Hydrodynamic theory of the interaction in radial transit-time oscillator

作　　者：贾云峰[1] 刘永贵[1] 

机构地区：[1]国防科学技术大学理学院,湖南长沙410073

出　　处：《强激光与粒子束》2003年第11期1087-1092,共6页High Power Laser and Particle Beams

基　　金：国家863计划项目资助课题

摘　　要：　用线性流体理论分析了径向渡越时间振荡器谐振腔中电子束与高频场的相互作用,通过数值求解得到了其中束 场能量交换等随直流渡越角的变化规律。与单电子模型的分析结果相比较,流体模型所得结果更具有普适性。By employing hydrodynamic theory, the interaction between the electron beam and the highfrequency field in the radial gap of the radial transittime oscillator is studied. By using numerical method, curves are given to illustrate the relation between the beamfield power exchange and the gap's transit angle. It shows that the cruuent density and the energy exchange will be oscillating with the transit angle increasing. The number density of beam is bigger, the energy exchange between the beam and the field is stronger. The results obtained from hydrodynamic theory are of more generality compared with those from single electron theory.

关 键 词：高功率微波源 渡越时间效应 径向渡越时间振荡器 流体理论 

分 类 号：TN015[电子电信—物理电子学]