Transport Experiments in The Texas Experimental Tokamak
スポンサーリンク
概要
- 論文の詳細を見る
The transport of an impurity injected into TEXT was investigated through measurement and simulation of detailed radial distributions of the impurity and using global confinement time measurements. An experiment was conducted for a plasma current of 300kA, a toroidal field of 28kG, and a chord-averaged electron density near 3.5×10^<13>cm^<-3>. This resulted in temporally resolved, radial distributions for Sc^<+12> through Sc^<+18> as well as a complete description of the background plasma. This data was numerically simulated using an impurity flux which is the sum of diffusive and convective terms. In additional experiments, the global impurity confinement time was observed for discharges with a wide range of toroidal fields but constant plasma current and density. From these measurements, the impurity confinement time was found to increase with decreasing toroidal field. An analytical description of transport which employs the same flux as the numerical simulation was used to estimate the adjustable transport parameters.
- 核融合科学研究所の論文
- 1984-11-00