2004
DOI: 10.1088/0741-3335/46/3/006
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Dispersion relation of azimuthal electromagnetic surface waves on a magnetized plasma column in a dielectric lined slow-wave waveguide

Abstract: The dispersion relation of azimuthal electromagnetic surface waves on a magnetized plasma column surrounded by a metallic cylindrical dielectric lined slow-wave waveguide is obtained. The permissible frequency region for these waves in E-and B-mode is presented. Furthermore, the graphs of frequency spectra and radial dependence of fields on the external magnetic field strength, geometric dimensions of the waveguide, radius of plasma column and thickness of dielectric are investigated.

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Cited by 18 publications
(33 citation statements)
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“…27 Therefore, the graphs of the growth rate (51) for this traveling wave tube in the presence of the annular relativistic electron beam for the zero-order Hartree harmonic (n ¼ 0) were plotted in Figs. [8][9][10]. In all of theses graphs related to the growth rate, there is a single point with a fixed operating frequency and wave number for a given configuration of the traveling wave tube.…”
Section: Non-equilibrium Tm Modesmentioning
confidence: 99%
See 1 more Smart Citation
“…27 Therefore, the graphs of the growth rate (51) for this traveling wave tube in the presence of the annular relativistic electron beam for the zero-order Hartree harmonic (n ¼ 0) were plotted in Figs. [8][9][10]. In all of theses graphs related to the growth rate, there is a single point with a fixed operating frequency and wave number for a given configuration of the traveling wave tube.…”
Section: Non-equilibrium Tm Modesmentioning
confidence: 99%
“…2,4,5 It is obvious that the problem of electron beamplasma interaction becomes simpler if a plasma column is placed inside a cylindrical metallic waveguide of smooth walls. 1, [6][7][8][9] Furthermore, it has been found experimentally that injecting plasma into the microwave apparatus can enhance the interaction efficiency and the output power much more than the vacuum case. 10 In this way, a device filled with plasma may serve as a source of microwave radiation.…”
mentioning
confidence: 99%
“…In Equations (14)- (17) In the mathematical analysis of the Mathieu equations, q is known as the intensity parameter [17,18]. Recall that in cross-section, the field Equations (25) and (26) and their hybrid solutions (14)- (17) are comparable with the field equations and their solutions presented in [22,23].…”
Section: Waves In Random and Complex Mediamentioning
confidence: 99%
“…These waves have been investigated previously [22][23][24][25] in long cylindrical metallic waveguides with circular cross-section. In the limit of waveguides with circular 10 B. Jazi et al…”
Section: 2mentioning
confidence: 99%
“…6 Due to their special properties, the surface waves have already been the subject of many theoretical, experimental, and numerical researches. [7][8][9][10][11][12][13][14][15] These waves can be excited on a sufficiently dense plasma and essentially depend on the plasma properties. The surface waves propagation characteristics in dense plasmas are also affected by quantum effects.…”
mentioning
confidence: 99%