28-02-2013, 03:14 PM
B.Tech. SEMESTER B8 Plasma Physics
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Objective
The present course is intended to provide the fundamental understanding of Plasma Physics.
Learning Outcome
The course will provide the basic understanding of Plasmas, Mirror Machine, Plasma Lens, Whistler waves, Alfven waves, Landau damping, sheaths, parametric processes, ITER and TOKAMAK.
Course outline
1. Introduction to the Plasma State: Elementary concepts, definition of temperature Debye Shielding, plasma parameters, applications of Plasma Physics, Production of Plasmas in the laboratory, Drifts of charged particles under the effect of different combinations of electric and magnetic fields and Mirror Machine. [10L]
2. Fluid description of plasmas : Relations of Plasma Physics to ordinary electromagnetic, dielectric constant of a plasma, collisions, equation of continuity, macroscopic parameters of plasma, two and one fluid equations for plasma. [4L]
3. Nonlinear Waves in Plasmas: Plasma oscillations, space charge waves of warm plasma, ion-acoustic waves and electromagnetic waves in magnetized plasma. [8L]
4. Diffusion and Resistivity : Decay of Plasma by diffusion, diffusion across a magnetic field, single fluid MHD equations, Diffusion in fully ionized Plasmas, Bohm diffusion and Neo classical diffusion.
5. Stability of fluid plasma : The equilibrium of plasma, classification of plasma instabilities, stability analysis: Two stream instability and Gravitational instability or Rayleigh Taylor instability (Plasma supported against gravity by magnetic field). [4L]
6. Nonlinear effects: Ponderomotive force, Parametric instabilities, decay instability, two plasmon decay, stimulated Raman scattering and stimulated Brillouin scattering, non linear Landau damping.