IGPP Seminar Series

Alfvenic Phenomena of Relevance to Laboratory and Space Plasmas

by George Morales
UCLA Physics and Astronomy Department

Abstract

An overview is presented of the properties of Alfven waves with particular emphasis on shear-polarized modes of small transverse scale across the magnetic field. These modes play a key role in the relaxation of current systems in laboratory and space plasmas. Two specific examples of such situations are discussed. One is the realization of an Alfven wave maser in the laboratory. The other is the generation of Alfven wave pulses due to resonant absorption of high frequency radiation in a magnetized plasma. Analysis, computer simulations and laboratory measurements are used to illustrate the basic concepts behind the phenomena.
Tuesday, 13 November 2007
3853 Slichter Hall
Refreshments at 3:45 PM
Lecture at 4:00 PM