FEL
6 - Free-Electron Laser (FEL) or Maser (FEM)
Fast-wave
vacuum device
High power
POUT ≈ 1 MW
Widely tunable (U)
Amplification of mm
waves requires
U ≈ 2...6 MV
SF6
Wiggler (undulator)
FEM
Lorentz
[7]
[6]