Status of the Novosibirsk high-power free-electron laser project

ABSTRACT A free electron laser with high average power is under construction in the Siberian Scientific Center. Purpose of this projectis to provide the Siberian Center of Photochemical Research with a user facility. The project status and features are describedin this paper.Keywords: free electron lasers, accelerators INTRODUCTION The tunability and potentially high average power make free electron lasers (EELs) very attractive for many scientific andtechnological applications. The Novosibirsk project is aimed to provide the source of few-kilowatt infrared radiation for theSiberian Center of Photochemical Research. The FEL itself will be a prototype for more powerful FELs. . The most distinguished features of our approach to the high power FEL design are following. The energy recovery. As the typical for the FELs efficiency of the energy transfer from the electron bbam to radiation isof order of one percent, the recovery of the used beam energy is extremely useful, reducing dramatically the radiation