【摘要】 本文的目的是对纵向均匀磁场二阶自由电子激光进行简要的动力学分析。证明了在纵向均匀磁场一阶自由电子激光基础上能够实现二阶自由电子激光的能量补偿。指出在补偿过程中电子束团的能谱将被压缩、束团中的电子数密度分布将被调制,从而能够实现二阶自由电子激光振荡,并且可以大大提高实际单程增益。更多还原

【Abstract】 The purpose of this paper is briefly to analyse dynamics of the second stage EFL in a longitudinal uniform magmetie field. It proves that the energy compensation of the second stage FEL can be realized on the basis of the first stage FEL in a longitudinal uniform magnetic field. It points out that during the compensation process the energy spectra of electron beam cluster is compressed, the electron number density distribution in the beam cluster modulated, which enables the realization of the oscillation of the second stage FEL and significant increase of practical gain per pass.更多还原