| 圆波导契伦柯夫自由电子激光流体描述 |
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| 引用本文： | 李传胪,刘永贵.圆波导契伦柯夫自由电子激光流体描述[J].强激光与粒子束,1991,3(2):136-146. |
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| 作者姓名： | 李传胪 刘永贵 |
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| 作者单位： | 国防科学技术大学应用物理系 长沙
(李传胪，刘永贵，黄流兴)，国防科学技术大学应用物理系 长沙(钱宝良) |
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| 摘 要： | 用磁流体理论研究了契伦柯夫自由电子激光的性质,导出了空心束驱动的圆柱对称波导契伦柯夫自由电子激光的色散关系,利用色散关系计算了契伦柯夫不稳定性增长率,给出了饱和功率的估计值,考虑了束与介质间间隙对契伦柯夫自由电子激光的影响,并就空心束与实心束情况进行了比较。
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| 关 键 词： | 自由电子激光 相对论 电子束 |
A FLUID MODEL CERENKOV FREE ELECTRON LASERS WITH DIELECTRIC - LOADED CYLINDRICAL WAVEGUIDES |
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| Li Chuanlu,Liu Yonggui,Huang Liuxing,and Qian Baoliang.A FLUID MODEL CERENKOV FREE ELECTRON LASERS WITH DIELECTRIC - LOADED CYLINDRICAL WAVEGUIDES[J].High Power Laser and Particle Beams,1991,3(2):136-146. |
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| Authors: | Li Chuanlu Liu Yonggui Huang Liuxing and Qian Baoliang |
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| Abstract: | A fluid model is used to describe Cerenkov free electron lasers with annular relativistic electron beams contained in dielectric-loaded cylindrical waveguides. The dispersion relation is derived, and the growth rate is given for the Cerenkov instability. Based on the saturation mechanism, the output power is estimated. Results show that the gap between the beam and the dielectric can degrade the beam-mode coupling, and the efficiency and output power for an annular beam may be higher than that for a solid beam. |
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| Keywords: | Cerenkov free electron laser relativistic electron beam linear growth rate |
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