RUDI GAELZER
Departamento de Física - Instituto de Física - Universidade Federal do Rio Grande do Sul
Av. Bento Gonçalves, 9500 - Caixa Postal 15051 - 91501-970 - Porto Alegre-RS - Sala N206 (Prédio 43134) (rudi.gaelzer@ufrgs.br) (email)
Av. Bento Gonçalves, 9500 - Caixa Postal 15051 - 91501-970 - Porto Alegre-RS - Sala N206 (Prédio 43134) (rudi.gaelzer@ufrgs.br) (email)
We compare and discuss several approximations to the dispersion relation for electrostatic waves in inhomogeneous Plasmas, either obtained directly from Poisson?s equation, or from the dielectric constant obtained using a dielectric tensor derived using the plAne wave approximation, or from the dielectric constant derived using the effective dielectric tensor.
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