Journal ArticleDOI
Linear Theory of the Beam-Wave Interaction in the Arbitrary Cylindrical Cerenkov Device
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TLDR
In this paper, the dispersion equation in Cerenkov devices has been derived and analyzed numerically using the self-consistent linear theory, which can be applied to efficiently calculate all kinds of beam-wave interaction in different types of axisymmetric slow-wave structures (SWS) with arbitrary periodic profile.Abstract:
The “hot” dispersion equation in Cerenkov devices has been derived and analyzed numerically using the self-consistent linear theory. In principle, the linear analysis can be applied to efficiently calculating all kinds of beam-wave interaction in various Cerenkov devices composed of axisymmetric slow-wave structures (SWS) with arbitrary periodic profile. Then the results for Cerenkov devices with three typical SWS profiles are presented.read more
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Journal ArticleDOI
Terahertz cherenkov radiation excited by an electron beam in a cylindrical metallic rippled-wall waveguide
F. Asadiamiri,Jalil Ali,Mahdi Bahadoran,Kashif Chaudhary,P. P. Yupapin,Malihe Nejati,Ali Reza Niknam +6 more
TL;DR: In this article, the effects of physical parameters such as dielectric and plasma radii, corrugation amplitude, and Corrugation period on the dispersion relation, electric field profiles and growth rates of the terahertz radiation are discussed.
Journal ArticleDOI
Excitation of an Axisymmetric Arbitrary-Walled Periodic Slow-Wave Structure by an Electron Beam Confined by a Finite-Strength Magnetic Field
TL;DR: In this article, the dispersion relation for an axisymmetric periodic slow-wave structure having arbitrary radial profile driven by an electron beam that is confined by a finite axial magnetic field is derived.
References
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Journal ArticleDOI
Backward wave oscillators with rippled wall resonators: analytic theory and numerical simulation
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A.N. Vlasov,Anatoly Shkvarunets,John C. Rodgers,Yuval Carmel,Thomas M. Antonsen,Tamer M. Abuelfadl,D. Lingze,V.A. Cherepenin,Gregory S. Nusinovich,M. Botton,V.L. Granatstein +10 more
TL;DR: In this article, the results of theoretical and experimental studies of a GW-class, large diameter microwave oscillator are presented, which consists of a large cross-section (overmoded), slow-wave structure with a unique profile of wall radius specifically designed to support surface waves and to provide a strong beam-wave coupling at moderate voltage (500 kV).
Journal Article
Vacuum electronics
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Journal ArticleDOI
Linear theory of electromagnetic wave generation in a plasma-loaded corrugated-wall resonator
K. Minami,Yuval Carmel,V.L. Granatstein,W.W. Destler,W. R. Lou,David K. Abe,R.A. Kehs,M. M. Ali,T. Hosokawa,Kazuo Ogura,Tsuguhiro Watanabe +10 more
TL;DR: In this article, a linear theory of the excitation of electromagnetic waves in a plasma-filled corrugated-wall waveguide with an arbitrarily large sinusoidal corrugation was derived and analyzed numerically.