Abstract
The turbulent angular momentum flux carried by ions resonant with toroidal ion temperature gradient (ITG) instability is calculated via quasilinear calculation using the phase-space conserving gyrokinetic equation in the laboratory frame. The results near ITG marginality indicate that the inward turbulent equipartition momentum pinch (Hahm et al 2007 Phys. Plasmas 14 072302) remains as the most robust part of pinch. In addition, ITG driven momentum flux is inward for typical parameters, while density gradient driven momentum flux is outward as in the previous kinetic result in slab geometry (Diamond et al 2008 Phys. Plasmas 15 012303).
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