Abstract
Los Alamos National Laboratory is pursuing a research and development program leading to eventual establishment of a free-electron laser (FEL) facility, based on a single rf linear accelerator, for production ot coherent radiation extending from the visible spectrum to the extreme UV and sott x-ray wavelengths as short as 10 nm. (Figure 1 iIlustrates such a multi-FEL oscillator conflguration.) Several key areas have been identified for concentrated attention over the next two years, particularly to assure feasibility at the short-wave- length end of this range. First, theoretical studies are directed toward maximizing the single-pass gain and output power from FEL osciliators using realistic electron beams produced by rf linacs. Since electron-beam emittance is the primary concern for rf linacs, a unique 3-D code (felex) has been developed for numerical simulation of FEL parameter variations.
© 1986 Optical Society of America
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