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Paper   IPM / Physic / 6570
School of Physics
  Title:   Time Evolution of the Distribution Function of Fast Neutral Beam Injected into A Plasma
1.  S. Sobhanian
2.  M.A. Jafarizadeh
  Status:   Published
  Journal: Indian J. Phys. B
  No.:  91
  Vol.:  70
  Year:  1996
  Pages:   513-519
  Supported by:  IPM
We have studied in this paper, the time evolution of a neutral beam injected into a plasma. The relaxation time of neutral beam having initially a δ−function shaped distribution function, can be estimated by calculating the eigenvalues of Fokker-Plank Operator(FPO). The coefficients of the FPO for our problem are determined from Rosenbluth potentials. Stationary and nonstationary solutions are found and discussed fot the distribution function of neutral test particles.

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