Simulation of a runaway electron avalanche developing in an atmospheric pressure air discharge

Barengolts, S. A.; Chaikovsky, S. A.; Oreshkin, V. I.

doi:10.1063/1.4936826

Title: Simulation of a runaway electron avalanche developing in an atmospheric pressure air discharge

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Abstract

To gain a better understanding of the operation of atmospheric pressure air discharges, the formation of a runaway electron beam at an individual emission site on the cathode has been numerically simulated. The model provides a description of the dynamics of the fast electrons emitted into an air gap from the surface of the emission zone by solving numerically two-dimensional equations for the electrons. It is supposed that the electric field at the surface of the emission zone is enhanced, providing conditions for continuous acceleration of the emitted electrons. It is shown that the formation of a runaway electron beam in a highly overvolted discharge is largely associated with avalanche-type processes and that the number of electrons in the avalanche reaches 50% of the total number of runaway electrons.

Authors:

Barengolts, S. A. ^[1]; Chaikovsky, S. A. ^[1]; Oreshkin, V. I. ^[2]

P. N. Lebedev Physical Institute, RAS, 119991 Moscow (Russian Federation)
Institute of High Current Electrons, SB, RAS, 634055 Tomsk (Russian Federation)

Publication Date:: Tue Dec 15 00:00:00 EST 2015

OSTI Identifier:: 22489966

Resource Type:: Journal Article

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 22; Journal Issue: 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AIR; ATMOSPHERIC PRESSURE; AVALANCHE QUENCHING; CATHODES; ELECTRIC DISCHARGES; ELECTRIC FIELDS; ELECTRON BEAMS; EMISSION; RUNAWAY ELECTRONS; TWO-DIMENSIONAL CALCULATIONS

Citation Formats


                    Oreshkin, E. V., E-mail: oreshkinev@scalpnet.ru, Barengolts, S. A., A. M. Prokhorov General Physics Institute, RAS, 119991 Moscow, Chaikovsky, S. A., Institute of High Current Electrons, SB, RAS, 634055 Tomsk, Oreshkin, V. I., and Department of Physical Methods of Non-Destructive Testing, Tomsk Polytechnic University, 634050 Tomsk. Simulation of a runaway electron avalanche developing in an atmospheric pressure air discharge.  United States: N. p., 2015. 
        Web.  doi:10.1063/1.4936826.

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                    Oreshkin, E. V., E-mail: oreshkinev@scalpnet.ru, Barengolts, S. A., A. M. Prokhorov General Physics Institute, RAS, 119991 Moscow, Chaikovsky, S. A., Institute of High Current Electrons, SB, RAS, 634055 Tomsk, Oreshkin, V. I., & Department of Physical Methods of Non-Destructive Testing, Tomsk Polytechnic University, 634050 Tomsk. Simulation of a runaway electron avalanche developing in an atmospheric pressure air discharge.  United States.  https://doi.org/10.1063/1.4936826

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                    Oreshkin, E. V., E-mail: oreshkinev@scalpnet.ru, Barengolts, S. A., A. M. Prokhorov General Physics Institute, RAS, 119991 Moscow, Chaikovsky, S. A., Institute of High Current Electrons, SB, RAS, 634055 Tomsk, Oreshkin, V. I., and Department of Physical Methods of Non-Destructive Testing, Tomsk Polytechnic University, 634050 Tomsk. 2015.  
        "Simulation of a runaway electron avalanche developing in an atmospheric pressure air discharge".  United States.  https://doi.org/10.1063/1.4936826.

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@article{osti_22489966,

  title        = {Simulation of a runaway electron avalanche developing in an atmospheric pressure air discharge},

  author       = {Oreshkin, E. V., E-mail: oreshkinev@scalpnet.ru and Barengolts, S. A. and A. M. Prokhorov General Physics Institute, RAS, 119991 Moscow and Chaikovsky, S. A. and Institute of High Current Electrons, SB, RAS, 634055 Tomsk and Oreshkin, V. I. and Department of Physical Methods of Non-Destructive Testing, Tomsk Polytechnic University, 634050 Tomsk},

  abstractNote = {To gain a better understanding of the operation of atmospheric pressure air discharges, the formation of a runaway electron beam at an individual emission site on the cathode has been numerically simulated. The model provides a description of the dynamics of the fast electrons emitted into an air gap from the surface of the emission zone by solving numerically two-dimensional equations for the electrons. It is supposed that the electric field at the surface of the emission zone is enhanced, providing conditions for continuous acceleration of the emitted electrons. It is shown that the formation of a runaway electron beam in a highly overvolted discharge is largely associated with avalanche-type processes and that the number of electrons in the avalanche reaches 50% of the total number of runaway electrons.},

  doi          = {10.1063/1.4936826},

  url          = {https://www.osti.gov/biblio/22489966},
  journal      = {Physics of Plasmas},

  issn         = {1070-664X},

  number       = 12,

  volume       = 22,

  place        = {United States},

  year         = {Tue Dec 15 00:00:00 EST 2015},

  month        = {Tue Dec 15 00:00:00 EST 2015}

}

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