Error Field Correction in ITER

Jong-kyu Park, Allen H. Boozer, Jonathan E. Menard, and Michael J. Schaffer

Princeton University. Plasma Physics Laboratory.

关键词: Magnetic Fields;    70 Plasma Physics And Fusion Technology;    Numerical Simulation, Tokamaks (Acronym) Iter, Magnet Field Effects;    Harmonics;    Iter Tokamak;   

RP-ID  :  PPPL-4315
RP-ID  :  DE-ACO2-76CHO3073
RP-ID  :  959384

美国|英语

来源: UNT Digital Library

【 摘 要 】

A new method for correcting magnetic field errors in the ITER tokamak is developed using the Ideal Perturbed Equilibrium Code (IPEC). The dominant external magnetic field for driving islands is shown to be localized to the outboard midplane for three ITER equilibria that represent the projected range of operational scenarios. The coupling matrices between the poloidal harmonics of the external magnetic perturbations and the resonant fields on the rational surfaces that drive islands are combined for different equilibria and used to determine an ordered list of the dominant errors in the external magnetic field. It is found that efficient and robust error field correction is possible with a fixed setting of the correction currents relative to the currents in the main coils across the range of ITER operating scenarios that was considered.