The effect of separatrix density and PFC material on H-mode confinement in the ITPA global H-mode database

M. Kotschenreuther, X. Liu, D. R. Hatch +1

Recent data, added to the ITPA global H-mode database [1] for ASDEX-U [2] and JET-ILW, reveals that the separatrix density $n_{sep}$ has a correlation with the H20 factor (Confinem…