PRELIMINARY STUDY OF TERAHERTZ FREE-ELECTRON LASER OSCILLATOR BASED ON ELECTROSTATIC ACCELERATOR*

Since the terahertz radiation sources provide wide applications in medical science, material science and industrial, a compact, wavelength tunable and high-power THz source attracted much attention in many laboratories [1]. In this paper, we give a primary study of a compact electrostatic accelerator driven THz FEL (EA-THz) and its basic design parameters. The feasibility study is carried out using FELO code [2]. The initial results show that such EA-FEL will be a promising compact and powerful THz source.