High-gain ring FEL as a master oscillator for X-ray generation

摘要

High-gain free electron laser (FEL) with bends between undulator sections is discussed. Such FEL configuration may be used for the mirror-free master oscillator in X-ray band. The oscillator linewidth is estimated. Results of computation for the state-of-art electron beam parameters show the feasibility of the X-ray oscillator FEL.