Wave induced double diffusion and its application to beam produtions at plasma boundaries.

Wave induced transport can produce diffusions both in coordinate space and in velocity space at a much closer rate than that in the case of a classic transort. In such a case the quasiliner diffusion in velocity space should be solved in conjuction with the diffusion in coordinate space. This leads to processes hitherto unknown such as a generation of a large number of accelerated particles near the plasma-vacuum boundary. As an example, the theory of a double diffusion caused by kinetic Alfvens wave turbulence is presented and generations of ion beams and electron anistropies near the plasma sheet boundary are discussed.