Energy recovery DC injector for high power free-electron lasers

Minehara, Eisuke

We need a high-gradient, high-current, and high-brightness 2MV DC electron accelerator as the injector being dedicated to realize the compact, highly-efficient, and high average power energy-recovery superconducting RF linac-based free-electron laser(ERL-FEL). In the nuclear energy industries, the high power ERL-FELs will be applied to weld deeply, to cut with a narrow width, and to peel-off perfectly many metal and non-metal components of the nuclear power reactor plants. In the meeting, we plan to report the conceptual design of the injector and ERL-FEL.