Abstract
The causes of the noncoincides of the results of the “hydrodynamic” and “corpuscular” methods of analyzing the interaction of a rotating electron beam in a fast wave, which have been presented in published papers, are investigated. Consideration of the pulsations of the beam boundaries in the “hydrodynamic” analysis by introducing equivalent surface currents leads to the relativistic dispersion equation derived by Gaponov [1] in the case of a small thickness of the beam walls.
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Literature cited
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Additional information
Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 15, No. 1, pp. 136–143, January, 1972.
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Rapoport, G.N., Kotsarenko, N.Y. On “surface currents” of a tubular beam having helical electron trajectories in the field of a fast wave. Radiophys Quantum Electron 15, 100–105 (1972). https://doi.org/10.1007/BF02209249
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DOI: https://doi.org/10.1007/BF02209249