A Status Report on the Development of a High Power UV and IR FEL at CEBA

Previously we presented a design for a kilowatt demonstration industrial UVFEL [1]. Progress has been made in resolving several design issues identified in that work. More exact simulations of the injector have resulted in a better estimate of the injector performance. A more compact lattice has been designed meeting the design requirements for the UV FEL, and a new design point has been studied which greatly increases the threshold for longitudinal instabilities. A stability analysis of the RF control system has found that only minor modifications from the existing CEBAF controls will be necessary to allow them to be used with a high current, energy- recovery accelerator. Designs for the optical cavity length and figure control systems have been conceptualized and a model of the corner-cube resonator is being built and tested. Finally, three- dimensional simulations of the FEL have been carried out which show that the laser should exceed its minimum design goals for average powerVirginia Center for Innovative Technology and DOE Contract # DE-AC05-84ER4015