Nonlocal kinetics of the electrons in a low-pressure afterglow plasma

doi:10.1103/PHYSREVE.73.056402

Title: Nonlocal kinetics of the electrons in a low-pressure afterglow plasma

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Abstract

Low-pressure pulsed plasmas are widely used in various technological applications. Understanding of the phenomena taking place in afterglow phase of the discharge makes possible the optimization of the operation conditions and improvement of the technical parameters. At low pressure the electron component of the plasma determines the main features of the discharge since its behavior dominates all other plasma properties. We study the electron kinetics in a low-pressure afterglow plasma of an inductively coupled discharge by means of a self-consistent model which uses the nonlocal kinetic approach. The main features of the model are given. Special attention is paid to determination of the steady state of the discharge from which the decay of the plasma begins. Emphasis is also put on the description of the collisional interaction between the electrons and gas. Results of theoretical investigations for argon at a pressure of 2-4 Pa are presented. Calculated temporal evolutions of the isotropic part of the electron velocity distribution function, electron density, mean electron energy, and wall potential are discussed in comparison with experimental data.

Authors:

Gorchakov, Sergey; Uhrlandt, Dirk; Hebert, Michael J.; Kortshagen, Uwe ^[1]; Department of Mechanical Engineering, University of Minnesota-Twin Cities, 111 Church Street Southeast, Minneapolis, Minnesota 55455 ^[2]

INP Greifswald, Fr.-L.-Jahn-Strasse 19, Greifswald 17489 (Germany)
(United States)

Publication Date:: Mon May 15 00:00:00 EDT 2006

OSTI Identifier:: 21069775

Resource Type:: Journal Article

Resource Relation:: Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; Journal Volume: 73; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevE.73.056402; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AFTERGLOW; ARGON; COMPARATIVE EVALUATIONS; DISTRIBUTION FUNCTIONS; ELECTRIC POTENTIAL; ELECTRON COLLISIONS; ELECTRON DENSITY; ELECTRONS; ION COLLISIONS; KINETICS; OPTIMIZATION; PLASMA; PLASMA DENSITY; STEADY-STATE CONDITIONS

Citation Formats


                    Gorchakov, Sergey, Uhrlandt, Dirk, Hebert, Michael J., Kortshagen, Uwe, and Department of Mechanical Engineering, University of Minnesota-Twin Cities, 111 Church Street Southeast, Minneapolis, Minnesota 55455. Nonlocal kinetics of the electrons in a low-pressure afterglow plasma.  United States: N. p., 2006. 
        Web.  doi:10.1103/PHYSREVE.73.056402.

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                    Gorchakov, Sergey, Uhrlandt, Dirk, Hebert, Michael J., Kortshagen, Uwe, & Department of Mechanical Engineering, University of Minnesota-Twin Cities, 111 Church Street Southeast, Minneapolis, Minnesota 55455. Nonlocal kinetics of the electrons in a low-pressure afterglow plasma.  United States.  doi:10.1103/PHYSREVE.73.056402.

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                    Gorchakov, Sergey, Uhrlandt, Dirk, Hebert, Michael J., Kortshagen, Uwe, and Department of Mechanical Engineering, University of Minnesota-Twin Cities, 111 Church Street Southeast, Minneapolis, Minnesota 55455. Mon .  
        "Nonlocal kinetics of the electrons in a low-pressure afterglow plasma".  United States.  
        doi:10.1103/PHYSREVE.73.056402.

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@article{osti_21069775,

  title        = {Nonlocal kinetics of the electrons in a low-pressure afterglow plasma},

  author       = {Gorchakov, Sergey and Uhrlandt, Dirk and Hebert, Michael J. and Kortshagen, Uwe and Department of Mechanical Engineering, University of Minnesota-Twin Cities, 111 Church Street Southeast, Minneapolis, Minnesota 55455},

  abstractNote = {Low-pressure pulsed plasmas are widely used in various technological applications. Understanding of the phenomena taking place in afterglow phase of the discharge makes possible the optimization of the operation conditions and improvement of the technical parameters. At low pressure the electron component of the plasma determines the main features of the discharge since its behavior dominates all other plasma properties. We study the electron kinetics in a low-pressure afterglow plasma of an inductively coupled discharge by means of a self-consistent model which uses the nonlocal kinetic approach. The main features of the model are given. Special attention is paid to determination of the steady state of the discharge from which the decay of the plasma begins. Emphasis is also put on the description of the collisional interaction between the electrons and gas. Results of theoretical investigations for argon at a pressure of 2-4 Pa are presented. Calculated temporal evolutions of the isotropic part of the electron velocity distribution function, electron density, mean electron energy, and wall potential are discussed in comparison with experimental data.},

  doi          = {10.1103/PHYSREVE.73.056402},

  journal      = {Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics},

  number       = 5,

  volume       = 73,

  place        = {United States},

  year         = {Mon May 15 00:00:00 EDT 2006},

  month        = {Mon May 15 00:00:00 EDT 2006}

}

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DOI: 10.1103/PHYSREVE.73.056402

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