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相对论行波管色散特性分析
引用本文:谢鸿全,鄢扬,刘盛纲.相对论行波管色散特性分析[J].强激光与粒子束,2002,14(1):111-114.
作者姓名:谢鸿全  鄢扬  刘盛纲
作者单位:电子科技大学高能电子学研究所, 四川 成都 610054
基金项目:国家自然科学基金 (项目 :行波管等离子体理论与实验研究 )资助课题
摘    要: 数值计算了一种填充等离子体的波纹波导结构的行波管,在强引导磁场下,被一环形相对论电子注驱动的小信号增益。详细地分析了等离子体的浓度、电子注的电压、电流及其在慢波结构中的传输位置对行波管的增益、带宽和中心频率的影响。

关 键 词:相对论行波管  等离子体  环行电子注  色散特性
文章编号:1001-4322(2002)01-0111-04
收稿时间:2001/7/24
修稿时间:2001年7月24日

Analysis of the dispersion on relativistic traveling wave tube
XIE Hong-quan,YAN Yang,LIU Sheng-gang.Analysis of the dispersion on relativistic traveling wave tube[J].High Power Laser and Particle Beams,2002,14(1):111-114.
Authors:XIE Hong-quan  YAN Yang  LIU Sheng-gang
Institution:Institute of High Energy Electronics, UESTC of China, Chengdu, 610054, China
Abstract:A cold and uniform plasma-filled traveling wave tube with sinusoidally corrugated slow wave structure is driven by a finite thick annular intense relativistic electron beam and the entire system is immersed in a strong longitudinal magnetic field. By means of the linear field theory, the dispersion relation for the traveling wave tube (RTWT) is derived. The dispersion characteristic of the RTWT is analyzed by numerical computation. The trend of the change for gain, bandwidth and center frequency of the RTWT is discussed in detail in different cases of various densities of plasma, transmission places of electron beam, voltages as well as currents. Some useful results are obtained on the basis of the discussion.
Keywords:RTWT  plasma  annular electron beam  dispersion characteristic
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