### Abstract

Coulomb collisions, at appreciable ratios (η) of the electron to the neutral particle density, influence significantly the electron kinetics in particle swarms and in plasmas of gas discharges. This paper introduces a combination of Molecular Dynamics and Monte Carlo simulation techniques, to provide a novel, approximation-free, first principles calculation method for the velocity distribution function of electrons, and related swarm characteristics, at arbitrary η. Simulation results are presented for electrons in argon gas, for density ratios between zero and 10^{-1}, representing the limits of a negligible electron density and an almost complete Maxwellization of the velocity distribution function, respectively.

Original language | English |
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Article number | 043504 |

Journal | Physics of Plasmas |

Volume | 21 |

Issue number | 4 |

DOIs | |

Publication status | Published - 2014 |

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### ASJC Scopus subject areas

- Condensed Matter Physics

### Cite this

**First principles calculation of the effect of Coulomb collisions in partially ionized gases.** / Donkó, Z.

Research output: Contribution to journal › Article

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TY - JOUR

T1 - First principles calculation of the effect of Coulomb collisions in partially ionized gases

AU - Donkó, Z.

PY - 2014

Y1 - 2014

N2 - Coulomb collisions, at appreciable ratios (η) of the electron to the neutral particle density, influence significantly the electron kinetics in particle swarms and in plasmas of gas discharges. This paper introduces a combination of Molecular Dynamics and Monte Carlo simulation techniques, to provide a novel, approximation-free, first principles calculation method for the velocity distribution function of electrons, and related swarm characteristics, at arbitrary η. Simulation results are presented for electrons in argon gas, for density ratios between zero and 10-1, representing the limits of a negligible electron density and an almost complete Maxwellization of the velocity distribution function, respectively.

AB - Coulomb collisions, at appreciable ratios (η) of the electron to the neutral particle density, influence significantly the electron kinetics in particle swarms and in plasmas of gas discharges. This paper introduces a combination of Molecular Dynamics and Monte Carlo simulation techniques, to provide a novel, approximation-free, first principles calculation method for the velocity distribution function of electrons, and related swarm characteristics, at arbitrary η. Simulation results are presented for electrons in argon gas, for density ratios between zero and 10-1, representing the limits of a negligible electron density and an almost complete Maxwellization of the velocity distribution function, respectively.

UR - http://www.scopus.com/inward/record.url?scp=84898973483&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898973483&partnerID=8YFLogxK

U2 - 10.1063/1.4871492

DO - 10.1063/1.4871492

M3 - Article

VL - 21

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 4

M1 - 043504

ER -