磁化环形等离子体填充波导中注-波互作用的研究  

STUDY OF THE BEAM-WAVE INTERACTIONS IN CYLINDRICAL WAVEGUIDE FILLED WITH A MAGNETIC PLASMA

作　　者：李伟[1] 魏彦玉[1] 鄢扬[1] 刘盛纲[1] 

机构地区：[1]电子科技大学高能电子学研究所,成都610054

出　　处：《电子与信息学报》2002年第8期1126-1130,共5页Journal of Electronics & Information Technology

摘　　要：该文利用线性理论,对相对论环形电子注与环形等离子体互作用产生微波辐射进行了研究。在考虑有限磁场的基础上,利用“匹配场法”求得色散方程。重点分析了等离子体密度、厚度,外加磁场对等离子体切伦可夫脉塞注-波互作用的影响,并计算了各参量变化时的波增长率以及色散关系。Considering the effect of the longitudinal uniform magnetic field, the microwave radiation produced by the interaction of a relativistic electron beam with a annular plasma is examined by use of the linear theory. In this paper the 'applied field' approach is used to derive the dispersion relationship. Analyzed the different plasma density, position, thickness, and field intensity influence to the beam-wave interactions in plasma Cerenkov maser. Finally, the curves and dispersion relationships about every parameter to influence the increase rates of linear space are given out.

关 键 词：波导 注-波互作用 环形等离子体 环形电子注 有限磁场 色散方程 增长率 微波器件 

分 类 号：TN12[电子电信—物理电子学]