自由电子激光潘尼混合器件提高效率的方法

Efficiency Enhancement of the Free Electron Laser-Peniotron Hybrid

本文研究了在直流磁场和横向摇摆器磁场中 ,具有大初始横向速度的电子束与波导中潘尼管型电磁波相互作用。分析指出 ,存在一种微妙的调谐机理和相位同步机理 ,有助于提高效率。模拟结果表明 ,在混合频率 ωc+ kw V∥ 上的相互作用是高效的 ,可达 40 %。

It is investigated that an electron beam with a large transverse velocity, gyrating in a combined solenoidal and weak transversely polarized periodic wiggler magnetic field, interacts with the Peniotron electromagnetic field. The analysis indicates that there exists a subtle tuning mechanism and a mechanism of keeping synchronism, which is helpful to enhance efficiency. The simulation show that the efficiency of the interaction at the hybrid frequency of wwc+kwV// is as high as 40%.