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Numerical Plasma Dispersion Relation Solver

Publication at Faculty of Mathematics and Physics |
2015

Abstract

We show first results of our new dispersion relation solver utilizing linear kinetic theory in a hot plasma with a magnetic field. Dispersion relation solutions found using the solver in various modes of calculation, e.g., electrostatic waves without a magnetic field, electromagnetic waves propagating parallel to the magnetic field or general oblique propagation of electrostatic and electromagnetic waves by calculating all components of the dielectric tensor, are compared with results from an older dispersion solver called WHAMP, which uses Padé approximation of the plasma dispersion function.

Emphasis is placed on locating instabilities leading to wave growth.