Recent measurements of the properties of the dust acoustic wave

A dusty plasma is a four-component plasma system consisting of ions, electrons, neutral particles and charged microparticles. The microparticle component interacts with the other plasma components, acquires a net charge and self-consistently modifies the surrounding plasma medium. The resulting system is notably more complex than the traditional plasma system and supports a wide range of physical phenomena, including a wave mode known dust acoustic wave; a low-frequency, longitudinal mode that propagates through the dust component of the dusty plasma system and is believed to be self-excited by the ions streaming through the dust component. This poster will present recent work that has looked at the behavior of this wave mode in different context, including (1) phase coupling between different modes in the natural and driven wave mode and (2) measurements made at the MDPX facility where the strength and direction of the magnetic field (relative to the direction of wave propagation) were be varied in a controlled way.