Author/Authors :
Soukhanovskii، نويسنده , , V.A. and Bell، نويسنده , , R.E. and Bush، نويسنده , , C. and Kaita، نويسنده , , R. and Kugel، نويسنده , , H.W. and LeBlanc، نويسنده , , B.P. and Maingi، نويسنده , , R. and Raman، نويسنده , , R. and Roquemore، نويسنده , , A.L.، نويسنده ,
Abstract :
Plasma–wall interaction analysis is developed at the National Spherical Torus Experiment. At present, poloidally separated recycling and neutral pressure measurements are used to characterize recycling flux trends. The causes of monotonic density increases observed in initial phases of H-mode discharges at t ⩽ 0.2 – 0.6 s appear to be the monotonically increasing source in the divertor, and particle containment time τ p ∗ long in comparison with discharge duration. The ratio of the wall flux to divertor flux is low throughout the density increase phase except in the initial segment, when dN e / dt is highest and magnitudes of the wall and divertor fluxes are similar.
