Research

Electron-wave interactions in vacuum tubes

The activity includes development of nonlinear self-consistent theory of mm and sub-mm wavelength vacuum tubes. Theory of such tubes as the orotron, the generator of diffrection radiation [1], the klystron with distributed interaction [2], the clinotron [3], and the spatial harmonic magnetron [4, 5] have been proposed, and a detailed study of the tubes operation has been performed as well.

The spatial harmonic magnetron and the clinotron are also studied experimentally in order to improve their efficiency and to extent operational frequency range [6, 7].

References

1. D.M. Vavriv and K. Schuenemann: Amplification regimes of the orotron: A single-resonator amplifier., Physical Review E, Vol. 57, #5, pp.5993-6007 (1998)

2. D.M. Vavriv and O.A. Tretyakov: Theory of Resonant Amplifiers with Distributed Interaction, Kiev: Naukova Dumka Press, pp.251 (1989) (in Russian)

3. K. Schuenemann and D.M. Vavriv: Theory of the Clinotron: A Grating Backward-Wave Oscillator with Inclined Electron Beam., IEEE Trans. ED, Vol. 46, #11, pp.2245-2252 (1999)

4. K. Schuenemann, S.V. Sosnytskiy and D.M. Vavriv: Self-consistent simulation of the spatial-harmonic magnetrons with cold secondary-emission cathode., IEEE Transactions on Electron Devices, Vol. 48, #5, pp.993-997 (2001)

5. S.V. Sosnytskiy and D.M. Vavriv: Theory of the spatial-harmonic magnetron: an equivalent network approach. , IEEE Trans. on Plasma Science, Vol. 30, #3, pp.984-991 (2002)

6. G.Ya. Levin, A.I. Borodkin, A.Ya. Kirichenko, A.Ya. Usikov and S.A. Churilova: The clinotron., Kiev, Naukova Dumka Press (1992) (in Russian)

7. S.V. Gritsaenko, V.D. Eremka, M.A. Kopot', O.P. Kulagin, V.D. Naumenko and A.N. Suvorov: Vacuum and solid-state electronics. Multiresonator magnetrons with cold secondary-emisson cathode:achevements, problems, perspectives (in Russian)., Radiophysics and Electronics, Vol. 10, pp.499-529 (2005) (in Russian)