OICC Press Journal of Theoretical and Applied Physics 2251-7235 12 1 2023 11 17 Theoretical relation between halo current-plasma energy displacement/deformation in EAST 10.1007/s40094-018-0276-1 EN OICC Press Authors Various OICC Press Authors Shahab Ud-Din Khan National Tokamak Fusion Program, Pakistan Atomic Energy Commission (PAEC), Islamabad, 3329, Pakistan Salah Ud-Din Khan Sustainable Energy Technologies Center, King Saud University, P.O.Box 800, Riyadh, 11421, Kingdom of Saudi Arabia Yuntao Song Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, 230031, Anhui, People’s Republic of China Chen Dalong Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, 230031, Anhui, People’s Republic of China Journal Article 2023 11 17 AbstractIn this paper, theoretical model for calculating halo current has been developed. This work attained novelty as no theoretical calculations for halo current has been reported so far. This is the first time to use theoretical approach. The research started by calculating points for plasma energy in terms of poloidal and toroidal magnetic field orientations. While calculating these points, it was extended to calculate halo current and to developed theoretical model. Two cases were considered for analyzing the plasma energy when flows down/upward to the diverter. Poloidal as well as toroidal movement of plasma energy was investigated and mathematical formulations were designed as well. Two conducting points with respect to (R, Z) were calculated for halo current calculations and derivations. However, at first, halo current was established on the outer plate in clockwise direction. The maximum generation of halo current was estimated to be about 0.4 times of the plasma current. A Matlab program has been developed to calculate halo current and plasma energy calculation points. The main objective of the research was to establish theoretical relation with experimental results so as to precautionary evaluate the plasma behavior in any Tokamak.