摘要
根据于敏教授的自由电子激光纵模统一理论,推导了磁场含有随机误差影响时光场的小信号增益和指数增益。并且结合曙光一号FEL装置,给出了指数增益区磁场随机误差σ与增益参数g_0的定标关系。同时利用三维WAGFEL程序详细地模拟计算了磁场随机误差对自由电子激光增益和饱和增益的影响。线性理论的结果得到了模拟计算的证实。
Based on Prof. Yumin's FEL longitudinal mode theory1'', the small signal and exponential growth rates including the effect of wiggler magnetic field random errors have been obtained, and with SG-1 parameters, the scaling relation between exponential growth rate parameter g0 and magnetic field random error σ is provided. The results of linear theory have been verified by 3-D simulations.
出处
《强激光与粒子束》
EI
CAS
CSCD
1992年第2期299-304,共6页
High Power Laser and Particle Beams
关键词
磁场随机误差
自由电子激光
增益
magnetic field random error, exponential growth, saturated output.
