STATUS OF THE NOVOSIBIRSK HIGH POWER FREE ELECTRON LASER

摘要

A 100-MeV 8-turns accelerator-recuperator (AR) intended to drive a high-power infrared free electron laser (FEL) is under construction in Novosibirsk now. The FEL will provide up to 100 kW average power radiation in the wavelength range 2-50 μm. As building up the full-scale machine takes a long time and much resources, it is reasonably to divide the project into two stages. The first-stage machine includes the AR with the Mi-scale RF-system and only one turn of electron beam, so the maximum energy of electrons is 14 MeV. A submillimeter-wave FEL will be installed on the single backward track of the AR. The expected FEL parameters are: wavelength of emitted radiation 100...200 μm; pulse duration 20... 100 ps; peak power 1...7 MW; average power 0.6...7 kW. Thus, one gets an operating FEL after commissioning the first stage of the project. Some aspects of these two projects and possible applications are discussed.