Figure 3
The diagrams of the directions of diamagnetic drift flow (a) and E × B drift flow (b) in the SOL and PFR regions for tokamak plasmas with normal toroidal magnetic field. In Fig. 3a, the black arrows represent the direction of diamagnetic drift flow, the blue arrows represent the poloidal direction and the red arrows represent the radial direction. In Fig. 3b, the black arrows represent the direction of poloidal E × B drift flow while the green arrows represent the direction of radial E × B drift flow. ①: interface of the low field side upstream and the outer divertor region; ②: interface of the SOL and PFR at the outer divertor region; ③: interface of the outer and inner PFR region; ④: interface of the SOL and PFR at the inner divertor region; ⑤: interface of the high field side upstream and the inner divertor region.
