A cost estimation model for high power FELs

A cost estimation model for scaling high-power free-electron lasers has been developed for estimating the impact of system-level design choices in scaling high-average-power superconducting-accelerator-based FELs. The model consists of a number of modules which develop subsystem costs and derive as an economic criterion the cost per kilojoule of light produced. The model does not include design engineering or development costs, but represents the 2nd through nth device. Presented in the paper is the relative sensitivity of designs to power and linac frequency while allowing the operating temperature of the superconducting cavities to optimize