Investigation of Ion-Acoustic Solitons in Magnetosphere and Tokamak Warm Plasma with Two-Temperature Electrons

Journal Article · Sat Sep 15 04:00:00 EDT 2018 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X18090027· OSTI ID:22763234

Dashtban, N.; Mohsenpour, T. ^[1]

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1. University of Mazandaran, Department of Atomic and Molecular Physics, Faculty of Sciences (Iran, Islamic Republic of)

The properties of oblique propagation of small amplitude ion-acoustic soliton are investigated in a plasma containing weakly relativistic ions and two-temperature electrons (cold and hot electrons). The reductive perturbation method is used to derive the Korteweg−de Vries equation for the present plasma model. It is found that the parameters determining the nature of soliton are different for compressive or rarefactive structures. Moreover, the effects of weakly relativistic ions, the temperature ratio, and the density ratio of hot-to-cold electron species on soliton characters are studied. The theory is applied on the case of relativistic ions observed in the magnetosphere and in the case of nonrelativistic ions observed in tokamaks.

• OSTI ID: 22763234
• Journal Information: Plasma Physics Reports, Journal Name: Plasma Physics Reports Journal Issue: 9 Vol. 44; ISSN PPHREM; ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRON TEMPERATURE
PERTURBATION THEORY
PLASMA
RELATIVISTIC RANGE
TOKAMAK DEVICES