Manifestation of polarization effects in dusty plasma

Marenkov, V.I.

doi:10.1016/j.molliq.2004.07.065

Cited by 1 publication

(2 citation statements)

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“…In the model of statistical electroneutral cells for a rarefied plasmosol (a system of emitting macroparticles, buffer gas, and electrons [5][6][7][8][9][10]), the distribution of a self-consistent electrostatic potential 𝜙(𝑟) in the free cell volume, 𝐶 ′ 𝜉 = 𝐶 𝑧 𝜉 − 𝑉 𝑝 , is described by the Poisson-Boltzmann equation, and the solution of the latter is expressed by the formula…”

Section: Local Electrostatic Field Of Plasmosolmentioning

confidence: 99%

“…The electron subsystem quickly "traces" changes in the local selfconsistent electrostatic field in the LTE regions of a plasma system. The consideration of electron-ion processes in HPFs based on the model of quasi-neutral plasma cells and carried out in the framework of the "adiabatic approximation analog" opens new capabilities for the research and description of braking radiation emission in the LTE regions of nonequilibrium plasma systems [6][7][8][9][10]. In particular, monitoring the evolution of braking radiation and the intensity of its "particle" component in the signal emitted by heterogeneous plasma with a condensed dispersed phase (CDP), it is possible to study the parameters of the relevant heavy subsystem, i.e.…”

Section: Introductionmentioning

confidence: 99%

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Radiation Emission by Nanoparticles in Heterogeneous Plasma with a Condensed Dispersed Phase

Marenkov¹

2014

Ukr. J. Phys.

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In the framework of the statistical "cell" approach to the description of the ionization in heterogeneous plasma (HP), the mechanism of braking radiation generation in the bulk of heterogeneous plasma formations has been studied. A new model was proposed for the description of the effective interaction between microfields and charges in plasma. The stochastic motion of charged particles in HP is considered as an evolution of anharmonic oscillations executed by separate charges in an instant field of electric forces in the electroneutral cell. The effective values of frequency and the specific integral power of the braking radiation from HP in the radio-frequency spectral range are calculated by averaging over the ensemble of cells. The amplitude-frequency function and the relative contributions of separate oscillation modes of plasma charges to the emitted radiation intensity are determined in the framework of the random phase approximation. A comparative analysis of the data obtained in the model theory and the experimental ones obtained for plasma with aluminum oxide nanoparticles was carried out in the space of key HP parameters. A good agreement was obtained between the results of computer-assisted simulation and the experimental data both at the qualitative and quantitative levels. Possibilities to apply the results obtained for making telediagnostics of heterogeneous plasma formations were discussed. K e y w o r d s: cell, quasi-neutrality, heterogeneous plasma formation (HPF), heterogeneous plasma, condensed dispersed phase (СDPh), braking radio-frequency radiation of the plasma, telediagnostics.

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Section: Local Electrostatic Field Of Plasmosolmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%