| Echo-enabled谐波放大自由电子激光参数 |
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| 引用本文： | 李和廷,贾启卡.Echo-enabled谐波放大自由电子激光参数[J].强激光与粒子束,2010,22(11). |
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| 作者姓名： | 李和廷 贾启卡 |
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| 作者单位： | 中国科学技术大学 国家同步辐射实验室， 合肥 230029 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 通过数值模拟,结合解析计算分析,研究了Echo-enabled谐波放大自由电子激光对装置参数和主要束流参数变化的独立敏感性,给出了谐波聚束因子和饱和功率随参数变化的数值模拟结果;对色散段由相干同步辐射效应引起的能散和发射度增长进行了估算和数值模拟。结果表明:相干同步辐射效应引起的切片能散和切片发射度增长在5%以内,对最后辐射影响不大。
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| 关 键 词： | 自由电子激光 敏感性 谐波聚束因子 饱和功率 相干同步辐射 |
| 收稿时间： | 1900-01-01; |
Parameter of echo-enabled harmonic generation free electron lasers |
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| Li Heting,Jia Qika.Parameter of echo-enabled harmonic generation free electron lasers[J].High Power Laser and Particle Beams,2010,22(11). |
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| Authors: | Li Heting Jia Qika |
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| Institution: | National Synchrotron Radiation Laboratory, University of Science and Technology of China, P. O. Box 6022, Hefei 230029, China |
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| Abstract: | The echo-enabled harmonic generation free electron laser (EEHG FEL) was proposed for producing short wavelength FEL radiation recently. The parameter sensitivity of EEHG FEL is studied through numerical simulation as the main method and analytical calculation. The simulation results are in excellent agreement with the analytical calculation results. The energy spread growth and emittance growth due to the coherent synchrotron radiation (CSR) in dispersing section are estimated and simulation is also done. The results show that the energy spread growth and emittance growth are small and can be ignored. |
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| Keywords: | sensitivity bunching factor saturation power coherent synchrotron radiation |
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