Temporal and spatial relaxation of electrons in low temperature plasmas

Winkler, R.; Loffhagen, Detlef; Sigeneger, F.

doi:10.1016/s0169-4332(02)00020-x

Cited by 49 publications

(58 citation statements)

References 46 publications

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“…The energy relaxation times of the electrons have magnitudes in the order of microseconds. (21) Consequently, it can be assumed that the electrons instantaneously respond to the electric field which changes at larger time scales.…”

Section: Electron Kineticsmentioning

confidence: 99%

Self-Consistent Analysis of the Spatial Relaxation of a Disturbed Neon Glow Discharge

Arndt

Sigeneger

Testrich

et al. 2005

Plasma Chem Plasma Process

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The response of a neon glow discharge plasma on a disturbance caused by a floating Langmuir probe is studied by a fully self-consistent, spatially one-dimensional hybrid method as well as by measurements. The theoretical description is based on the coupled solution of the hydrodynamic equations of electrons, ions, and excited atoms and the Poisson equation. The space-dependent transport and rate coefficients of the electron component are determined by a strict solution of the non-uniform electron kinetic equation. For the measurements, a probe was inserted in radial direction into the discharge several cm in front of the anode. The spatial evolution of the densities of the excited atoms in the 1s 3 , 1s 5 , and 2p 8 states was determined by spectroscopic methods. Pronounced modulations of basic plasma parameters have been observed around the probe, decaying periodically and damped toward the anode. The measured density profiles of the excited atoms agree well with the numerically determined ones. The analysis of the electron kinetic quantities shows that the response of the plasma to the disturbance is widely determined by the nonlocal behaviour of the electrons in the distinctly disturbed electrical field.

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Section: Electron Kineticsmentioning

confidence: 99%

Self-Consistent Analysis of the Spatial Relaxation of a Disturbed Neon Glow Discharge

Arndt

Sigeneger

Testrich

et al. 2005

Plasma Chem Plasma Process

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“…In case the average energy approach is used, the actual space and time dependent electron energy is computed from an electron energy balance, thus accounting to some extent for the spatial and temporal relaxation, although modelling of steep gradients and phenomena with such a characteristic time that they affect part of the distribution function are difficult to handle [22]:…”

Section: Standard Continuously Burning Rf Dischargesmentioning

confidence: 99%

Hydrodynamic and Kinetic Modelling of Dust Free and Dusty Radio‐Frequency Discharges

Goedheer

Akdim

Chutov

2004

Contrib. Plasma Phys.

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“…In these and further [29,30] studies it has generally been found that a kinetic approach is required and that the deduced microscopic and macroscopic behaviour of the electrons strongly depends on the specific problem considered. A common result of the analyses is that a pronounced non-local response of the electron gas takes place e.g.…”

Section: Kinetics Of the Electronsmentioning

confidence: 99%

Electron Kinetics and Self‐Consistent Description of Inhomogeneous and Nonstationary Plasmas

Loffhagen¹,

Arndt²,

Sigeneger³

et al. 2005

Contrib. Plasma Phys.

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A brief introduction into the progress of the analysis of the electron kinetics and the self-consistent description of inhomogeneous and nonstationary plasmas is given. The spectrum of problems treated by electron kinetic studies as well as by the overall description of non-isothermal plasmas is briefly characterized. Main aspects of the analyses are outlined and the progress reached in recent years in the framework of the collaborative research activities of the Sonderforschungsbereich 198 "Kinetics of partially ionized plasmas" is illustrated by topical kinetic study and self-consistent modelling results of some selected problems.

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Temporal and spatial relaxation of electrons in low temperature plasmas

Cited by 49 publications

References 46 publications

Self-Consistent Analysis of the Spatial Relaxation of a Disturbed Neon Glow Discharge

Self-Consistent Analysis of the Spatial Relaxation of a Disturbed Neon Glow Discharge

Hydrodynamic and Kinetic Modelling of Dust Free and Dusty Radio‐Frequency Discharges

Electron Kinetics and Self‐Consistent Description of Inhomogeneous and Nonstationary Plasmas

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