Abstract
The radiative drift-Alfvén wave instability in a nonuniform dusty magnetoplasma has been theoretically studied by using a normal mode analysis. A new dispersion relation has been derived analytically, and studied numerically in order to examine the instability of the drift-Alfvén waves. The roles of the net heat radiation loss, electron collision frequency, inhomogeneities in plasma temperature and densities, the presence of static dust (impurities), etc. on the drift-Alfvén wave instability have been discussed. The results of this theoretical investigation can have relevance to the instabilities in low-β fusion plasma devices (tokamaks).
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