Isotopic scaling of transport in deuterium-tritium plasmas
- 1 March 1995
- journal article
- Published by IOP Publishing in Physica Scripta
- Vol. 51 (3) , 394-401
- https://doi.org/10.1088/0031-8949/51/3/021
Abstract
Both global and thermal energy confinement improve in high-temperature supershot plasmas in the Tokamak Fusion Test Reactor (TFTR) when deuterium beam heating is partially or wholly replaced by tritium beam heating. For the same heating power, the tritium-rich plasmas obtain up to 22% higher total energy, 30% higher thermal ion energy, and 20-25% higher central ion temperature. Kinetic analysis of the temperature and density profiles indicates a favorable isotopic scaling of ion heat transport and electron particle transport, with τEi(a/2) ∝ A0.7-0.8 and τpe(a) ∝ A0.8.Keywords
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