Abstract

The possibility of generation of high-power (multi-megawatt) broadband terahertz radiation during stimulated backscattering of an intense millimeter-wavelength pump wave by a high-current relativistic electron beam (REB) is shown. With allowance for a significant parameter spread that is typical for intense REBs, the kinetic interaction regime is expedient. This regime leads to the broadening of the scattered-radiation spectrum, but simultaneously increases the efficiency of the beam energy conversion into short-wavelength radiation.

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