The linear theory of free-electron laser (FEL) is established by means of the spacecharge wave theory. Equations for space-charge waves in FEL with magnetostatic wiggler have been derived and solved. The space-charge ...The linear theory of free-electron laser (FEL) is established by means of the spacecharge wave theory. Equations for space-charge waves in FEL with magnetostatic wiggler have been derived and solved. The space-charge density waves and the current waves have been obtained, and the differences between these waves and the conventional space-charge waves are discussed in detail. Using these space-charge waves, the dispersion equations of FEL have been derived, and some special cases are analyzed. A new concept and suggestion are presented.展开更多
文摘The linear theory of free-electron laser (FEL) is established by means of the spacecharge wave theory. Equations for space-charge waves in FEL with magnetostatic wiggler have been derived and solved. The space-charge density waves and the current waves have been obtained, and the differences between these waves and the conventional space-charge waves are discussed in detail. Using these space-charge waves, the dispersion equations of FEL have been derived, and some special cases are analyzed. A new concept and suggestion are presented.