Non-Liouvillean cooling of a heavy-ion beam for inertial confinement fusion could require VUV radiation such as that provided by a free-electron laser (FEL). Therefore, a fully 3D simulation code for FEL amplifiers has been developed. Longitudinal electron motion is simulated according to the same equations as used in 1D codes. The 3D code also takes into account the dynamics of an e-beam with finite emittance in a realistic 3D wiggler field. Laser field equations, including higher harmonics, are solved by a finite-element method. Some results for the design of a FEL amplifier in the VUV region are reported. © 1993 Società Italiana di Fisica.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics
- Astronomy and Astrophysics