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Information × Registration Number 0221U105388, 0120U102140 , R & D reports Title Multiharmonic processes in klystron-type free electron lasers popup.stage_title Head Lysenko Alexander V., Доктор фізико-математичних наук Registration Date 29-06-2021 Organization Sumy State University popup.description2 The quadratic nonlinear approximation analyzes the amplifying characteristics of single-stream superheterodyne FEL, which uses two mechanisms of electromagnetic signal amplification: the mechanism of parametric amplification of the electromagnetic wave using a traditional undulator with a transverse periodic-reversible magnetic field and an additional amplification mechanism using a longitudinal electrostatic undulator. The expression for the wave increment, which is associated with both the parametric instability of the transverse waves and the parametric instability of the longitudinal waves in the electrostatic undulator, is obtained and analyzed. The prospects of using such superheterodyne FEL as powerful amplifiers in the millimeter-submillimeter wavelength range have been demonstrated  Product Description popup.authors Ilin Stanislav S Volk Iurii Yu. Korovai Mykhailo O Oleksiienko Galyna A Shevchenko Alina T popup.nrat_date 2021-06-29 Close