Waves and Instabilities in Dusty Plasmas - University of Iowa
Waves and Instabilities in Dusty Plasmas - University of Iowa
Waves and Instabilities in Dusty Plasmas - University of Iowa
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Quas<strong>in</strong>eutrality <strong>in</strong> dusty plasmas<br />
• For low frequency waves the condition<br />
holds <strong>in</strong> both zero <strong>and</strong> first order<br />
ni = ne + Zdnd<br />
• def<strong>in</strong><strong>in</strong>g:<br />
ε = n n<br />
do<br />
io<br />
we characterize the<br />
dusty plasma us<strong>in</strong>g the quantity<br />
εZ d<br />
which is the fraction <strong>of</strong> negative charge on<br />
the dust gra<strong>in</strong>s
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