Author/Authors :
Kugel، نويسنده , , H.W. and Soukhanovskii، نويسنده , , V. E. Bell، نويسنده , , M. and Blanchard، نويسنده , , W. P. Gates ، نويسنده , , D. and LeBlanc، نويسنده , , B. and Maingi، نويسنده , , R. and Mueller، نويسنده , , D. and Na، نويسنده , , H.K. and Paul، نويسنده , , S. R. Skinner، نويسنده , , C.H. and Stutman، نويسنده , , D. and Wampler، نويسنده , , W.R.، نويسنده ,
Abstract :
High performance operating regimes have been achieved on NSTX through impurity control and wall conditioning techniques. These techniques include HeGDC-aided boronization using deuterated trimethylboron, inter-discharge HeGDC, 350 °C PFC bake-out followed by D2 and HeGDC, and experiments to test fueling discharges with either a He-trimethylboron mixture or pure trimethylboron. The impact of this impurity and density control program on recent advances in NSTX plasma performance is discussed.
Keywords :
Wall conditioning , Boron fueling , Boronization , Impurity control
