| 毫米波自由电子激光的数值摸拟和定标律 |
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| 引用本文： | 杨震华,董志伟,田世洪,王泰春.毫米波自由电子激光的数值摸拟和定标律[J].强激光与粒子束,1989(3). |
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| 作者姓名： | 杨震华 董志伟 田世洪 王泰春 |
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| 作者单位： | 北京应用物理与计算数学研究所
(杨震华，董志伟，田世洪)，北京应用物理与计算数学研究所(王泰春) |
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| 摘 要： | 本文用毫米波自由电子激光三维程序(WAGFEL程序)对典型的矩形波导管毫米波自由电子激光放大器的情况进行了计算、并将所得结果与线性理论进行了比较。两者之间有很好的一致性。同时,考察了电流、束流能散度、空间电荷效应等因素对激光增益系数的影响。在束流亮度不变的情况下,考察了饱和输出功率和饱和功率位置与电流的关系,得到了一些十分有用的定标律。此外,还考察了波导效应、空间电荷效应以及β_2<1效应对共振磁场漂移的影响。
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| 关 键 词： | 自由电子激光 指数增益 饱和功率 空间电荷效应 定标律 |
NUMERICAL SIMULATIONS AND SCALING LAWS FOR MICROWAVE FREE ELECTRON LASERS |
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| Yang Zhenhua,Dong Zhiwei,Tian Shi ong,and Wang Taichun Institute Beijing Applied physies and Conputational Mathementies.NUMERICAL SIMULATIONS AND SCALING LAWS FOR MICROWAVE FREE ELECTRON LASERS[J].High Power Laser and Particle Beams,1989(3). |
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| Authors: | Yang Zhenhua Dong Zhiwei Tian Shi ong and Wang Taichun Institute Beijing Applied physies and Conputational Mathementies |
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| Abstract: | Simulations of millimeter-wave free electron laser amplifiers with a typicat rectangwiar wars were made using a 3-D free electron laser amplifier code (WAGFEL ).Te results were in good agreement water those of linear theory. Meanwhile, effects of the beam current .energy spread and space charge on gam coefiacnt-were examined . Furthermore, the dependence of values of saturated outputs on the electron current .in position of saturation was studied and some useful relations for scaling were obtained. |
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| Keywords: | Mierowave FEL exponential gain saturation power space charge sealing law |
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