Abstract

The effect of curvature on the trapped electron drift instability is considered. If the particles are trapped in bad curvature regions, the instability is seen to have a growth rate comparable to that of the temperature gradient instability treated by Kadomtsev and Pogutse. On the other hand, particles trapped in good curvature regions have a stabilizing influence, although a lower growth rate mode (which has a node at the magnetic field minimum) can still exist.

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