Dispersion properties of dusty plasmas.

Details Dispersion properties of dusty plasmas. Dispersion properties of dusty plasmas.

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989dpdp.book.....d&link_type=abstract

Dispersion properties of dusty plasmas., by de Angelis, U.; Bingham, R.; Tsytovich, V.. Rutherford Appleton Lab., Chilton (UK),

Computer Science

Scientific paper

The presence of charged dust particles in a plasma can change its dispersion properties. From the linear response of an equilibrium dusty plasma to the propagation of small perturbations the authors find an average dielectric function ɛ(ω,k) for the system in the case when the grain space distribution is random, and ensemble averages are taken over the random variables. For the case of high frequency plasma waves, when ɛ ≍ 1 - ωp2/ω2 for the unperturbed case (cold plasma) the authors find that ɛ becomes complex in the presence of the dust, leading to possible damping in a domain where Landau damping is usually negligible (ω ≫ kVT).

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