Low frequency responses, waves and instabilities in dusty plasmas

Tsytovich, V. N.; de Angelis, U.; Bingham, R.
April 2002
Physics of Plasmas;Apr2002, Vol. 9 Issue 4, p1079
Academic Journal
The charging collisions of electrons and ions with dust particles and the collisions of all particles with neutral atoms are self-consistently taken into account to study low-frequency modes and instabilities in dusty plasmas. These were previously treated with a multicomponent approach for fixed grain charge or taking into account the dust charge variations but not the effect of the electron/ion-dust collisions on the plasma distributions and response. A new general expression for the dusty plasma response is found and examples of waves and instabilities in dusty plasmas are considered for a broad range of frequencies lower than both the charging frequency and the frequency of plasma particle interactions with dust. Suggestions for future experiments are given.


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