| 摆动器场误差对自由电子激光器自发辐射谱的影响 |
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| 引用本文： | 胡素兴 傅恩生. 摆动器场误差对自由电子激光器自发辐射谱的影响[J]. 光学学报, 1996, 16(5): 77-583 |
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| 作者姓名： | 胡素兴 傅恩生 |
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| 作者单位： | 中国科学院上海光学精密机械研究所 |
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| 摘 要： | 在考虑平面型摆动器（Ｗｉｇｇｌｅｒ）场误差△Ｂ（ｚ）的情况下，求解电子在磁场中运动的洛仑兹（Ｌｏｔｅｎｔｚ）方程，得到场误差对电子横向速度的改变，然后作傅里叶变换即为电子自发辐射谱的改变，并讨论了各种场误差对自由电子激光器自发辐射谱的影响，选择北京自由电子激光器（ＢＦＥＬ）参数，进行模拟，最后确定出各种场误差的可接受条件。
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| 关 键 词： | 自由电子 激光器 场误差 自发辐射谱 |
| 收稿时间： | 1994-10-17 |
Effects of Field in Undulator on the Spontaneous Spectrum of Free Electron Laser |
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| Hu Suxing Fu Ensheng. Effects of Field in Undulator on the Spontaneous Spectrum of Free Electron Laser[J]. Acta Optica Sinica, 1996, 16(5): 77-583 |
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| Authors: | Hu Suxing Fu Ensheng |
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| Abstract: | Resolving the Lorentz equation of electron motion in the undulator which has a field error, we obtain the change of transverse velocity of electrons. Through a Fourier transformation, we can find the influence of all kinds of field error in undulator on spontaneous spectrum. Choosing the BFEL parameters, we simulated the effects on FEL spontaneous spectrum due to field errors, and obtained the acceptable condition of all kinds of field errors in undulator. |
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| Keywords: | free electron laser field error spontaneous spectrum. |
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