Improved confinement with reversed magnetic shear in TFTR.
نویسندگان
چکیده
Highly peaked density and pressure profiles in a new operating regime have been observed on the Tokamak Fusion Test Reactor (TFTR). The qprofile has a region of reversed magnetic shear extending from the magnetic axis to r / u 0.3-0.4. The central electron density rises from 0.45 x lo2’ m-3 to nearly 1.2 x lo2’ m-’ during neutral beam injection. The electron particle diffusivity drops precipitously in the plasma core with the onset of the improved confinement mode and can be reduced by a factor of N 50 to near the neoclassical particle diffusivity level. 52.55.-s, 52.55.Fa, 52.30.Bt DISTRIBUTION OF THIS DOCUMENT IS UNLlMlTEb
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عنوان ژورنال:
- Physical review letters
دوره 75 24 شماره
صفحات -
تاریخ انتشار 1995