Fully kinetic assessments of the stability properties of toroidaldrift modes have been obtained for cases for the large helical device(LHD). This calculation employs the comprehensive linearmicroinstability code FULL, as recently extended for nonaxisymmetricsystems. The code retains the important effects in the linearizedgyrokinetic equation, using the lowest-order `ballooningrepresentation' for high toroidal mode number instabilities in theelectrostatic limit. These effects include trapped particles, FLR,transit and bounce and magnetic drift frequency resonances, etc. for any number of plasma species. Results for toroidal driftwaves destabilized by trapped electrons and ion temperature gradientsare presented, using numerically-calculated three-dimensional MHDequilibria. These are reconstructed from experimental measurements.Quasilinear fluxes of particles and energy for each species are alsocalculated. Pairs of LHD discharges with different magnetic axispositions and with and without pellet injection are compared. Theproperties of the calculated linearly unstable modes are compared withthe experimentally observed anomalous transport.
New linear stability parameter to describe low-β electromagnetic microinstabilities driven by passing electrons in axisymmetric toroidal geometry