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With the consideration of the dust charge variation, the oblique modulational instability of the dust-acoustic waves in an unmagnetized warm dust plasma is studied. A nonlinear Schrödinger equation governing the slow modulation of the wave amplitude is derived. The effect of the dust...
One-dimensional (1-D) and two-dimensional (2-D) hybrid simulations are carried out to study the interaction between a background plasma and an ion beam, whose velocity is parallel to the ambient magnetic field B 0 . B 0 . It is found that the beam–plasma interaction and the associated wave...
The nonlinear saturation of stimulated Brillouin scattering (SBS) in long beryllium plasmas (500 μm) and for long time (500 ps) is studied in detail through well-diagnosed one-dimensional (1D) hybrid particle-in-cell (PIC) simulations done using BZOHAR B. I. Cohen, B. F. Lasinski, A. B. Langdon,...
Recent experiments have characterized trapped-particle modes on a non-neutral plasma column A. A. Kabantsev, C. F. Driscoll, T. J. Hilsabeck, T. M. O’Neil, and J. H. Yu, Phys. Rev. Lett. 87 , 225002 (2001), and in this paper we present a theoretical model of the modes. Theoretical predictions...
A two-dimensional magnetohydrodynamic (MHD) simulation of the reflection dynamics of a field-reversed configuration (FRC) plasma is performed by numerically modeling a confinement region of the FRC Injection Experiment H. Himura et al., Phys. Plasmas. 2 , 191 (1995) machine. The FRC plasma is...
The Bohm criterion for the dusty plasma sheath is investigated with a fluid model. It is shown that the presence of dust particles near the interface between the bulk plasma and the sheath should have effects upon the ion Mach number. The dust particles charging and density variation are taken...
High-density hydrogen-plasma production in a simple torus using the m = +1 m = + 1 azimuthal mode of helicon waves is investigated. The measured dispersion relation of helicon waves in the high-density region shows deviation from that of the m = +1 m = + 1 mode derived using a uniform-plasma...
The dynamic evolution equations for the parallel heat fluxes in a collisionless magnetized plasma are consistently derived and shown to reduce to very compact forms. This derivation is based on the fast gyromotion ordering applicable under strong magnetization conditions. For consistency in the...
The study extends models of the cw-regime of operation of diffusion-controlled discharges by incorporating the actual shape of the high-frequency signal producing the discharge as a narrow-band signal. The slow variations of the wave envelope determining slowly varying Joule heating of the...
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