自由电子激光中预群聚电子束的传播性质
PROPAGATION PROPERTIES OF A RELATIVISTIC PREBUNCHED ELECTRON BEAM IN FREE ELECTRON LASER
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摘要: 研究了在自由电子激光(FEL)中预群聚电子束的传播性质，并得到如下结论:在预电子束的传播过程中，基波调制电流的振幅随传播距离增加，其相位保持不变；谐波调制电流的振幅及相位均保持不变。Abstract: The propagation properties of a prebunched electron be am in free electron lasers is investigated in this paper.Results show that: As the beam pr opagates downstream, the amplitude of the fundamental modulation current is enha nced and its phase keeps unchanged,while both the amplitude and phase of the hig h harmonic modulation current remain unchanged．
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