Surface waves on the harmonics of the electron cyclotron frequency propagating along a plasma - metal interface

Azarenkov, N. A.; Girka, V. O.; Kondratenko, A. M.; Sporov, A. E.

doi:10.1088/0741-3335/39/3/004

Cited by 12 publications

(13 citation statements)

References 17 publications

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“…(4) can be taken into consideration only for the calculation of the SWCF damping rates. Expressions for the Q11, Q l 2 , Q22 are presented in [13].…”

Section: Introductionmentioning

confidence: 99%

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Parametric Instability of Surface Waves on the Second Harmonic of Electron Cyclotron Frequency in a Plasma Layer

Girka¹,

Sporov

1997

Contrib. Plasma Phys.

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A b s t r a c tThe parametric instability of surface waves on the second harmonic of electron cyclotron frequency (SWCF) in a plasma filled dielectric wave guide is examined in a kinetic approximation. The studied surface waves are extraordinary polarized modes and propagate across the external steady magnetic field. The amplitude of the electrical pump wave is assumed to be small. Simple expressions for increments of the parametric instability of the SWCF are calculated. The otained results can be used in controlled fusion researches in order to avoid undesirable regimes of plasma periphery heating in that fusion devices which use the resonance electron cyclotron heating method.

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“…(4) can be taken into consideration only for the calculation of the SWCF damping rates. Expressions for the Q11, Q l 2 , Q22 are presented in [13].…”

Section: Introductionmentioning

confidence: 99%

“…(3), using eq. (11) and expressions (12), (13), which are infered from the boundary conditions, we obtain the following infinite set of equations:…”

Section: Introductionmentioning

confidence: 99%

Parametric Instability of Surface Waves on the Second Harmonic of Electron Cyclotron Frequency in a Plasma Layer

Girka¹,

Sporov

1997

Contrib. Plasma Phys.

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“…The dispersion properties of these surface X modes (STXM) in a nonuniform plasma-filled metal waveguide with dielectric coating have been studied in [11]. It was found that ion and electron STXM have different dispersion properties and, in the case of a plasma-metal interface, they can propagate only in mutually opposed directions [12]. The directions of their propagation are determined by the orientation of the Larmor rotation of the corresponding charged plasma particles near the metal interface.…”

Section: Introductionmentioning

confidence: 99%

Excitation of surface cyclotron O modes by charged-particle beams

Girka

2002

J. Plasma Phys.

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A theoretical investigation of the interaction between a charged-particle beam and ordinarily polarized surface waves at the first two harmonics of ion and electron cyclotron frequencies propagating across an external steady magnetic field is carried out. The case of weak plasma spatial dispersion when the Larmor radii of plasma particles are much less than the penetration depth of these waves into the plasma is considered. The indicated waves are eigenmodes of the planar plasma–vacuum–metal waveguide structure, which is exposed to a steady magnetic field oriented parallel to the plasma surface. It is supposed that a cold charged- particle beam propagates over the plasma surface in the vacuum region. The beam density is less than the plasma density. Excitation of these O modes at the first and second harmonics of electron and ion cyclotron frequencies caused by the both resonant beam and dissipative instabilities is studied analytically. The dependence of their growth rates on parameters of the considered waveguide structures is also examined.

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“…Radiofrequency (RF) and microwave gas discharges produced and sustained by surface modes can be utilized in semiconductor processing, in pumping laser media, in plasma production (Moisan and Pelletier 1992;Ferreira and Moisan 1993), etc. Ion cyclotron resonance heating (CRH) (Becoulet 1996) and electron CRH (Laqua et al 1997) are well known as widely used methods of additional plasma heating in fusion devices. RF or microwave energy launched by antenna systems is transformed via various conversion processes into energy of ion or electron cyclotron waves.…”

Section: Introductionmentioning

confidence: 99%

“…Lyssoivan et al 1996). Dispersion properties of electron STXM have been examined by Azarenkov et al 1997b) for the case of propagation along the plasma-metal interface. The case of ion STXM propagation along the plasma-metal interface was studied by Azarenkov et al 1997c).…”

Section: Introductionmentioning

confidence: 99%

Excitation of surface-type X modes by charged-particle beams

Girka¹

1998

J. Plasma Phys.

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A theoretical investigation of extraordinary polarized surface waves at the second harmonics of ion and electron cyclotron frequencies propagating across an external steady magnetic field is carried out in the case of weak plasma spatial dispersion when the thermal velocities of plasma particles are much less than the phase velocities of the considered waves. These waves are eigenmodes of a planar plasma–vacuum waveguide structure that is situated in a steady magnetic field oriented parallel to the plasma surface. A cold charged-particle beam is assumed to propagate over the plasma interface. Excitation of surface X modes at the second harmonics of electron and ion cyclotron frequencies due to the beam–plasma interaction is studied analytically. The dependence of surface-type X-mode (STXM) growth rates on the considered waveguide structural parameters is also studied.

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Surface waves on the harmonics of the electron cyclotron frequency propagating along a plasma - metal interface

Cited by 12 publications

References 17 publications

Parametric Instability of Surface Waves on the Second Harmonic of Electron Cyclotron Frequency in a Plasma Layer

Parametric Instability of Surface Waves on the Second Harmonic of Electron Cyclotron Frequency in a Plasma Layer

Excitation of surface cyclotron O modes by charged-particle beams

Excitation of surface-type X modes by charged-particle beams

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