Applied Physics and Mathematics Annotation << Back Amplification of terahertz field and generationof radiation at resonance cherenkov interactionof relativistic electron beam with plasma Rukhadze A.A.Samkharadze T.G Theoretically is investigated the resonant stimulated Cherenkov radiation by a relativistic electron beam of THz radiation in dense plasmas, partially filling the waveguide. Investigated are two tasks. 1. Electron beam excitation volume quasi-longitudinal waves in plasma, completely filling the waveguide, in order to achieve the maximum possible amplitude of the field which is comparable with the overturn field. 2. Excitation by the sliding electron beam in the plasma cylinder quasi transverse surface waves in order to achieve extremely high radiation intensity. Considered are high-current beams with moderate relativism (2.5 MeV), working in a quasi-stationary, or repetitively pulsed regimes. The maximal value of amplified fields which are reached at the stage of beam electrons capturing in the amplified field and the density of radiation flux are founded. It is shown that the maximal field is less than the tilting field but the radiation power could be higher than the beam power. Key words: terahertz region of frequencies, Cherenkov resonance, plasma, electron beam, waveguide, quasi-stationary regime, repetitively regime. Contacts: E-mail: rukh@fpl.gpi.ru Pp. 11-17.