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 interaction in cylindrical waveguide filled with a manetic plasma
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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。Abstract: Considering the effect of the logitudinal 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 liner 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.
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D.K. Abc, Carmel, S. M. Miller, et al., Experimental studies of ovcrmoded relativistic backwardwave oscillators, IEEE Trans. on Plasma Science, 1998, PS-26(3), 591-603.[2]刘盛纲,J K.Lee,祝大军,鄢扬,宋立群,等离子体波导中电磁波传输理论,中国科学,1996,26(4),348-363.[3]JianQiang Wu, Cerenkov radiation excited by a thin annular relativistic electron beam in a slowwave structure consisting of an annular-plasma-filled cylindrical waveguide with a dielectric lining,Int. J. Electronics., 1998, 84(5), 539-548.[4]B. Shokri, H. Ghomi, H. Latifi, Dielectric Cherenkov maser with a magnetically confined plasma column in a dielectric lined slow-wave waveguide, Physics of Plamas, 2000, 7(6), 2671 2676.[5]吴坚强,刘盛纲,填充环形等离子体的介质切伦可夫脉塞,电子科学学刊,1998,20(5),682-688[6]宫玉彬,王文祥,等离子体圆柱波导慢电磁波的激励,电子科学学刊,1996,18(3),298-303. -
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