Wave Particle Interaction — Some Laboratory Observations
Electrostatic waves are both a sign of, and intimately bound up with, significant changes in the particle velocity distribution in natural as well as laboratory plasmas. It has been known from some years of laboratory study that collisionless plasmas exhibit an abundance of electrostatic (k ∥ E) noise, or ‘microinstabilities’, in a very wide variety of experiments. The contribution of electrostatic waves to particle acceleration, velocity space diffusion, and bulk properties such as particle diffusion, plasma resistivity and heat transfer are the subject of theoretical (here we include the increasingly important computer simulations) and experimental studies in many laboratories around the world.
KeywordsPhase Velocity Trap Particle Wave Particle Interaction Electrostatic Wave Main Wave
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