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Paper   IPM / Physic / 8515
School of Physics
  Title:   Nonlinear Regime of the Filamentation of A Microwave Produced Plasma
  Author(s): 
1.  B. Shokri
2.  A.R. Niknam
  Status:   Published
  Journal: Phys. Plasmas
  Vol.:  14
  Year:  2007
  Pages:   032113
  Supported by:  IPM
  Abstract:
The nonlinear dynamics of the magnetic field and anisotropic instability due to interaction of a plasma with microwave radiation, by making use of magnetohydrodynamic equations and Ampere-Maxwell law, are investigated. Also, it is shown that the Lienard nonlinear differential equation describes the evolution of the magnetic field in the plasma. We investigate the profiles of magnetic field and electron density variation in plasma and show that these profiles have a nonsinusoidal shape in the nonlinear regime. Furthermore, it is shown that the electron density becomes highly peaked in this regime. Also, due to the nonlinear effect, the cross section and shape of transverse filamentation can vary in the static limit.

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