Ion-Acoustic Waves in a Small Density Gradient
A plasma that is infinite in extent and everywhere uniform and constant in density is a theoretical approximation to reality. Although for all practical purposes the interior regions of some plasmas of interest closely approximate the conditions assumed in such theoretical models, all plasmas have regions of strong density variation in the vicinity of their surfaces. As we show in this chapter, the associated density gradients can produce strong modifications of the wave motion occurring in plasmas.
KeywordsDensity Gradient Density Profile Uniform Plasma Nonuniform Plasma Electron Density Perturbation
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