Loa Alamos, New Mexico. Los Alamos National Laboratory
Abstract
Both oscillator and regenerative amplifier configurations are being studied to optimize the design
of a MW-class FEL. The regenerative amplifier uses a longer undulator and relies on higher
extraction efficiency to achieve high average power, whereas the oscillator is a more compact
overall design requiring the transport of the high energy electron beam around bends for energy
recovery. Using parameters extrapolated from the I kW LANL regenerative amplifier, simulations
study the feasibility of achieving I MW average power.Los Alamos National Laborator
