Publication Date:
2011-08-19
Description:
Propagation and damping of ion-acoustic waves have been investigated in a Q-machine plasma consisting of K(+) positive ions, SF6(-) negative ions, and electrons. The phase velocity of the ion-acoustic 'fast' mode increases with increasing epsilon, the concentration of negative ions. The wave damping decreases with increasing epsilon, and nearly disappears, for the highest wave frequencies investigated, when epsilon is more than about 0.9. Both results are in agreement with predictions from Vlasov theory.
Keywords:
PLASMA PHYSICS
Type:
Physics of Fluids B (ISSN 0899-8221); 3; 284-287
Format:
text
Permalink