Diffusion in plasma: The Hall effect, compositional waves, and chemical spots

Journal Article · Wed Mar 15 00:00:00 EDT 2017 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X1703014X· OSTI ID:22614019

Urpin, V., E-mail: [e-mail] ^[1]

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1. Ioffe Institute of Physics and Technology (Russian Federation)

Diffusion caused by a combined influence of the electric current and Hall effect is considered, and it is argued that such diffusion can form inhomogeneities of a chemical composition in plasma. The considered mechanism can be responsible for the formation of element spots in laboratory and astrophysical plasmas. This current-driven diffusion can be accompanied by propagation of a particular type of waves in which the impurity number density oscillates alone. These compositional waves exist if the magnetic pressure in plasma is much greater than the gas pressure.

• OSTI ID: 22614019
• Journal Information: Plasma Physics Reports, Vol. 43, Issue 3; Other Information: Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASTROPHYSICS
CHEMICAL COMPOSITION
DENSITY
DIFFUSION
ELECTRIC CURRENTS
HALL EFFECT
PLASMA
PLASMA IMPURITIES