3D free electron laser gain for an electron beam with finite emittance and energy spread

1995 ◽  
Vol 359 (1-2) ◽  
pp. 50-56 ◽  
Author(s):  
V.N. Litvinenko
Keyword(s):  
Electron Beam ◽  
Free Electron ◽  
Free Electron Laser ◽  
Energy Spread ◽  
Laser Gain

scholarly journals Compensation of thermal loss in free-electron laser with optimal tapering and pre-bunching

2020 ◽  
Vol 38 (2) ◽  
pp. 141-147
Author(s):  
F. Bazouband
Keyword(s):  
Electron Beam ◽  
Free Electron ◽  
Free Electron Laser ◽  
Nonlinear Differential Equations ◽  
Three Dimensional ◽  
Energy Spread ◽  
Thermal Electron ◽  
Simulation Code ◽  
Runge Kutta Method ◽  
Saturation Power

AbstractIncreasing the output power of a long-wavelength free-electron laser (FEL), despite the destroying effects of beam energy spread, is studied using the optimal pre-bunching of the thermal electron beam along with the optimal tapering of the planar wiggler magnetic field. A set of self-consistent coupled nonlinear differential equations in three dimensional that describe the evolution of radiation and electron beam in the interaction zone are solved numerically by the Runge–Kutta method. The axial energy spread is considered and it degrades the FEL performance by reducing the saturation power and increasing the saturation length. To compensate these destroying effects, the optimum function or degree of electron beam pre-bunching and optimum parameters of wiggler tapering are found by the successive runs of the simulation code.

Parametrization of the electron beam induced energy spread in free electron laser dynamics

1994 ◽  
Vol 76 (1) ◽  
pp. 55-62 ◽  
Author(s):  
G. Dattoli ◽  
L. Giannessi ◽  
P. L. Ottaviani ◽  
A. Torre
Keyword(s):  
Electron Beam ◽  
Free Electron ◽  
Free Electron Laser ◽  
Energy Spread ◽  
Laser Dynamics

Free-electron-laser gain degradation and electron-beam quality

1986 ◽  
Vol 34 (6) ◽  
pp. 4875-4881 ◽  
Author(s):  
W. B. Colson ◽  
J. C. Gallardo ◽  
P. M. Bosco
Keyword(s):  
Electron Beam ◽  
Free Electron ◽  
Free Electron Laser ◽  
Beam Quality ◽  
Laser Gain
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