Hydrodynamic analysis of the high electric fields and double layers in expanding inhomogeneous plasmas

Journal Article · Mon Dec 01 00:00:00 EST 1986 · IEEE Trans. Plasma Sci.; (United States)

DOI:https://doi.org/10.1109/TPS.1986.4316630· OSTI ID:6688624

Goldsworthy, M P; Green, F; Lalousis, P; Stening, R J; Eliezer, S; Hora, H

A genuine two-fluid model of plasmas with collisions permits the calculation of dynamic electric fields and double layers inside of plasmas including oscillations and damping. For the first time, a macroscopic model for coupling of electromagnetic and Langmuir waves was achieved with realistic damping. Starting points were laser-produced plasmas showing very high dynamic electric fields in nonlinear force-produced cavitons and inverted layers, in agreement with experiments. Applications for any inhomogeneous plasma as in laboratory or in astrophysical plasmas can then be followed up by a transparent hydrodynamic description. The authors find the rotation of plasmas in magnetic fields and a new second harmonic resonance. Explanation of inverted double layers, second harmonic emission from laser-produced plasmas, and laser acceleration of charged particles by the very high fields of the double layers is given.

• Research Organization: Dept. of Theoretical Physics, Univ. of New South Wales, Kensington 2033
• OSTI ID: 6688624
• Journal Information: IEEE Trans. Plasma Sci.; (United States), Vol. PS-14:6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
INHOMOGENEOUS PLASMA
ASTROPHYSICS
ELECTRIC FIELDS
HYDRODYNAMIC MODEL
LAYERS
LASER-PRODUCED PLASMA
BENCH-SCALE EXPERIMENTS
COLLISIONS
DAMPING
HARMONIC GENERATION
MAGNETIC FIELDS
PLASMA ACCELERATION
PLASMA WAVES
ROTATION
ACCELERATION
FREQUENCY MIXING
MATHEMATICAL MODELS
MOTION
PARTICLE MODELS
PLASMA
STATISTICAL MODELS
THERMODYNAMIC MODEL
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