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Recent results from confinement scaling experiments on tokamaks with Ohmic and strong auxiliary heating are reviewed. An attempt is made to draw these results together into a "low-density" ohmic confinement scaling law, and a scaling law for confinement with auxiliary heating. The auxiliary heating confinement law may also serve to explain the saturation in TE vs. e observed in some ohmic heating density scaling experiments.
R.J. Goldston (Sun,) studied this question.