| FEM放大器非线性特性研究 |
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| 引用本文： | 李大治,梁正.FEM放大器非线性特性研究[J].电子科技大学学报(社会科学版),2000(1). |
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| 作者姓名： | 李大治 梁正 |
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| 作者单位： | 电子科技大学高能电子所!成都610054 |
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| 基金项目： | 国家科委863高科技项目 |
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| 摘 要： | 以圆柱波导、平板摇摆器为模型，导出了自洽的注波互作用三维非线性方程组。并考虑了电子初始速度零散的影响，在此基础上编制了相应的计算软件。通过数值分析的方法研究了自由电子激光器（ＦＥＭ）的饱和效率、频带宽度等高频特性和摇摆器锥化设计对延缓饱和、提高效率的作用。
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| 关 键 词： | 自由电子激光器 平板摇摆器 饱和效率 带宽 |
Research on Nonlinear Effects of FEM Amplifier |
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| Li Dazhi ,Liang Zheng.Research on Nonlinear Effects of FEM Amplifier[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2000(1). |
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| Authors: | Li Dazhi Liang Zheng |
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| Abstract: | A set of coupled nonlinear differential equations of the FEM amplifier are derived in three dimensions for a configuration consisting of a cylindrical waveguide and a planar wiggler These equations include the effects of electron momentum spread and wiggler taper governing the self-consistent evolution of TE mode and trajectories of an ensemble of electrons. The initial conditions are chosen to model the adiabatic injection of a cylindrically symmetric electron beam. Computer program based on these equations is made and nonlinear effect including saturation efficiency and bandwidth is analyzed. |
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| Keywords: | FEM planar wiggler saturation efficiency bandwidth |
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