Author： Hao Xiong Ming-Hai Liu Ming Chen Bo Rao Jie Chen Zhao-Quan Chen Jin-Shui Xiao Xi-Wei Hu
Publisher： IOP Publishing
E-ISSN： 1741-4199|24|9|95202-95207
ISSN： 1674-1056
Source： Chinese Physics B, Vol.24, Iss.9, 2015-09, pp. : 95202-95207
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The intrinsic radial magnetic field (Br) in a tokamak is explored by the solution of the Grad–Shafranov equation in axisymmetric configurations through an expansion of the four terms of the magnetic surfaces. It can be inferred from the simulation results that at the core of the device, the tokamak should possess a three-dimensional magnetic field configuration, which could be reduced to a two-dimensional one when the radial position is greater than 0.6a. The radial magnetic field and the amzimuthal magnetic field have the same order of magnitude at the core of the device. These results can offer a reference for the analysis of the plasma instability, the property of the core plasma, and the magnetic field measurement.
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