Fig. 4. The global energy confinement quality under different detached conditions.

The H₉₈ versus degree of detachment (a), pedestal pressure (b), and pedestal β_N,ped (c) across several plasma scenarios. The scenarios compared are open divertor standard H-mode (red), closed divertor standard H-mode (green), super H-like (blue), and high-β_p (purple) plasmas. The power and plasma current are also labeled. β_N,ped = β_ped/(I_p/aB_T) takes different plasma current and B_T into account for a better comparison of the pedestal pressure. The plasma shapes for open and closed geometries can be found in refs. ^43,45. The purple-diamond data in high-β_p are taken from Fig. 1 and purple-square data are from a similar discharge.