Space-charge-based electrostatic plasma confinement involving relaxed plasma species

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In this article, a numerical study is reported on the equilibrium properties of a surface-emitted or edge-confined non-drifting plasma. A self-consistent finite-differences evaluation of the electrostatic potential is carried out for a non-neutral plasma that follows a Boltzmann density distribution.

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Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L. October 23, 2012.

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This article is part of the collection entitled: UNT Scholarly Works and was provided by the UNT College of Arts and Sciences to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 51 times. More information about this article can be viewed below.

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In this article, a numerical study is reported on the equilibrium properties of a surface-emitted or edge-confined non-drifting plasma. A self-consistent finite-differences evaluation of the electrostatic potential is carried out for a non-neutral plasma that follows a Boltzmann density distribution.

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8 p.

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Abstract: A numerical study is reported on the equilibrium properties of a surface-emitted or edge-confined non-drifting plasma. A self-consistent finite-differences evaluation of the electrostatic potential is carried out for a non-neutral plasma that follows a Boltzmann density distribution. The non-neutral plasma generates an electrostatic potential that has an extremum at the geometric center. Poisson’s equation is solved for different ratios of the non-neutral plasma size to the edge Debye length. The profiles of the electrostatic potential and the plasma density are presented for different values of that ratio. A second plasma species is then introduced for two-plasma-species confinement studies, with one species confined by the space charge of the other, while each species follows a Boltzmann density distribution. An equilibrium in which a neutral region forms is found. An equilibrium is also found in which the two species have equal temperatures and charge states.

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  • Physics of Plasmas, 19(10), American Institute of Physics, 2012

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  • Publication Title: Physics of Plasmas
  • Volume: 19
  • Issue: 10

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  • October 23, 2012

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  • Aug. 3, 2020, 3:07 p.m.

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  • Nov. 7, 2023, 1:19 p.m.

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Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L. Space-charge-based electrostatic plasma confinement involving relaxed plasma species, article, October 23, 2012; (https://digital.library.unt.edu/ark:/67531/metadc1705447/: accessed December 14, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT College of Arts and Sciences.

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