Relativistic backward wave oscillator using a selective mode converter |
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| Authors: | É B Abubakirov A N Denisenko N F Kovalev E A Kopelovich A V Savel’ev E I Soluyanov M I Fuks V V Yastrebov |
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| Institution: | (1) Institute of Applied Physics, Russian Academy of Sciences, 603600 Nizhny Novgorod, Russia |
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| Abstract: | A new version of the relativistic backward wave oscillator (BWO) is proposed and investigated experimentally, where the cutoff
(for the working mode mode) taper at the cathode end is replaced by a selective Bragg-type mode converter. In the experimental
BWO model, which operates in the three-centimeter range and is equipped with a mode converter based on a slightly corrugated
waveguide, a radiated power of 700 MW in pulses of duration up to 100 ns with an output spatial structure similar to a Gaussian
wave beam is obtained at an accelerating potential of 0.8 MV and a focusing magnetic field of 7 kOe.
Zh. Tekh. Fiz. 69, 102–105 (November 1999) |
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