The kinetic dispersion relation for a magnetized dusty plasma comprising of ions,
electrons and massive, charged dust particles is solved for low frequency electrostatic
instabilities in the dust plasma frequency regime. The free energy is provided by the
drifting ion beam. The effect of varying parameters such as ion drift speed, particle
densities, ion temperature and magnetic field strength on the real frequency and
growth rate is examined. Initially light and heavy dust species of different charge
are separately considered. This procedure is then repeated for a four-component
plasma in an attempt to study the effect of the presence of both the dust species on
low frequency electrostatic phenomena. Using a different plasma model, instabilities
generated by an equal E x B drift of both the magnetized ions and electrons relative
to the unmagnetized dust grains of both the heavy and light dust species is also
investigated. The latter instabilities are applicable to the planetary ring plasmas of
Saturn. Throughout our studies, numerical solutions of the full dispersion relation
for the real frequency and growth rate are compared with approximate analytical
solutions. / Thesis (M.Sc.)-University of Durban-Westville, 1999.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:ukzn/oai:http://researchspace.ukzn.ac.za:10413/4635 |
| Date | January 1999 |
| Creators | Maharaj, Shimul Kumar. |
| Contributors | Bharuthram, Ramesh. |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
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