Abstract
The multiple ion species toroidal rotation velocities of impurity ions in DIII-D tokamak plasma were analyzed. The toroidal rotation velocities were measured using charge exchange recombination (CER) spectroscopy of impurity species. The non-negligible effect of energy dependent charge exchange cross sections predicted difference in toroidal rotation velocities which included strong Z dependence. The difference in toroidal rotation velocities was found to be dominated by neoclassical processes. The difference between measured impurity rotation velocity and main ion rotation velocity was substantial.
Original language | English |
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Pages (from-to) | 3100-3105 |
Number of pages | 6 |
Journal | Physics of Plasmas |
Volume | 11 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2004 |