Nonlocal Effects in an Ion Beam Driven Ion Acoustic Waves in a Magnetized Dusty Plasma

Abstract

This chapter reports experimental results on ion acoustic waves in dusty plasma. It is found that the phase velocity of the ion acoustic fast mode increases with an increasing the concentration of the negatively charged dust grains, ɛ while the wave damping decreases with increasing ɛ. An ion beam propagating through a magnetized dusty plasma cylinder destabilizes electrostatic dust ion acoustic waves. The chapter discusses a nonlocal theory of this process. According to the results, the fluctuations of the dust grain charge are found to be a source of wave damping or growth.