Ion-acoustic double-layers in a magnetized plasma with nonthermal electrons

Journal Article · Fri Nov 15 00:00:00 EST 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4829019· OSTI ID:22218416

Rios, L. A. ^[1]; Galvão, R. M. O. ^[1]

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1. Centro Brasileiro de Pesquisas Físicas and Instituto Nacional de Ciência e Tecnologia de Sistemas Complexos, Rua Xavier Sigaud 150, 22290-180 Rio de Janeiro (Brazil)

In the present work we investigate the existence of obliquely propagating ion-acoustic double layers in magnetized two-electron plasmas. The fluid model is used to describe the ion dynamics, and the hot electron population is modeled via a κ distribution function, which has been proved to be appropriate for modeling non-Maxwellian plasmas. A quasineutral condition is assumed to investigate these nonlinear structures, which leads to the formation of double-layers propagating with slow ion-acoustic velocity. The problem is investigated numerically, and the influence of parameters such as nonthermality is discussed.

• OSTI ID: 22218416
• Journal Information: Physics of Plasmas, Vol. 20, Issue 11; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISTRIBUTION FUNCTIONS
ELECTRONS
ION ACOUSTIC WAVES
IONS
MAGNETOHYDRODYNAMICS
NONLINEAR PROBLEMS
PLASMA FLUID EQUATIONS
PLASMA SHEATH
WAVE PROPAGATION