The correlation of edge plasma current, electric field and divertor condition in tokamak

• DOI: 10.1016/j.nme.2022.101317
• Publication Date: 2022-11-26T02:51:02Z
• Authors: Xuele Zhao; Chaofeng Sang; Yilin Wang; Daoyuan Liu; Chen Zhang; Dezhen Wang
• Keywords: Electric current

The particle transport in divertor region of current size tokamak can be affected by electric field (E) significantly through the E×B drift. plasma current, which is associated with drifts closely, affects E. In this work, SOLPS-ITER code package used to evaluate influence regime, toroidal magnetic Bt direction on as well plasma. It found that poloidal (jx) dominated parallel while radial (jy) mainly consists diamagnetic and ion-neutral friction near target. regime plays an important role field. (i) (Ex) electron density (ne) temperature (Te) high recycling (j||) Ex detached regime. (ii) (Ey) reduced varies from also Ey low upstream density, weakened density. asymmetry evaluated different low/high dependence E direction, corresponding impact are systemically studied for steady-state discharge tokamak.