| 自由电子激光振荡器中电子束能量跳跃对增益的影响 |
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| 引用本文： | 姜云卿,束小建. 自由电子激光振荡器中电子束能量跳跃对增益的影响[J]. 强激光与粒子束, 1999, 11(4): 389-392 |
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| 作者姓名： | 姜云卿 束小建 |
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| 作者单位： | 国家863计划强辐射实验室第五研究室，应用物理与计算数学研究所， 北京8009信箱，邮 编100088 |
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| 基金项目： | 国家863 激光技术领域资助课题 |
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| 摘 要： | 微脉冲中电子束能量、电流的跳跃会影响电子束的质量, 从而也影响激光的增益。在CAEP FIR FEL 理论设计模型参数的基础上，利用一维定态程序对电子束能量跳跃对增益的影响进行了数值研究，并与非定态程序计算结果进行比较，给出可容许的能量跳跃范围。
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| 关 键 词： | 自由电子激光振荡器 能量跳跃 激光增益 激光功率 |
| 文章编号： | 1001-4322(1999)04-0389-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 1998-12-20 |
THE EFFECT OF THE ELECTRON-BEAM ENERGY JITTER ON GAIN IN FEL OSCILLATOR |
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| JIANG Yun qing,SHU Xiao jian th. THE EFFECT OF THE ELECTRON-BEAM ENERGY JITTER ON GAIN IN FEL OSCILLATOR[J]. High Power Laser and Particle Beams, 1999, 11(4): 389-392 |
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| Authors: | JIANG Yun qing SHU Xiao jian th |
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| Affiliation: | JIANG Yun qing,SHU Xiao jian 5th Department of High Power Radiation Laboratory under National 863 RD Program,Institute of Applied Physics and Computational Mathematics,P. O. Box 8009,Beijing 100088 |
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| Abstract: | The FEL oscillators with high power, high efficiency require stable electron beam as a pump. That means energy, current and period of e beam should stabilize pass by pass during a macropulse. Actually, it is impossible to keep an absolute stabilization of electron beam during a micropulse. The jitter of e beam will affect gain of laser seriously. The effects of energy jitter of e beam on the gain are studied using the FEL 1D code (W1D) developed by us based on the parameters of the CAEP FIR FEL. The results show that the energy jitter should be less than 0.5% for CAEP FIR FEL. |
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| Keywords: | FEL oscillator energy jitter gain of laser power of laser |
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