中国物理B ›› 2015, Vol. 24 ›› Issue (9): 95202-095202.doi: 10.1088/1674-1056/24/9/095202

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Radial magnetic field in magnetic confinement device

熊昊a b, 刘明海a b, 陈明a b, 饶波a b, 陈杰a b, 陈兆权c, 肖金水a b, 胡希伟a b   

  1. a State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China;
    b School of Electrical and Electric Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
    c College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China
  • 收稿日期:2014-12-29 修回日期:2015-04-09 出版日期:2015-09-05 发布日期:2015-09-05
  • 基金资助:
    Project supported by the Special Domestic Program of ITER, China (Grant No. 2009GB105003).

Radial magnetic field in magnetic confinement device

Xiong Hao (熊昊)a b, Liu Ming-Hai (刘明海)a b, Chen Ming (陈明)a b, Rao Bo (饶波)a b, Chen Jie (陈杰)a b, Chen Zhao-Quan (陈兆权)c, Xiao Jin-Shui (肖金水)a b, Hu Xi-Wei (胡希伟)a b   

  1. a State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China;
    b School of Electrical and Electric Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
    c College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China
  • Received:2014-12-29 Revised:2015-04-09 Online:2015-09-05 Published:2015-09-05
  • Contact: Liu Ming-Hai E-mail:mhliu@hust.edu.cn
  • Supported by:
    Project supported by the Special Domestic Program of ITER, China (Grant No. 2009GB105003).

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摘要： 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.

关键词: radial magnetic field, minor toroidal coordinate, three-dimensional magnetic field configuration

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.

Key words: radial magnetic field, minor toroidal coordinate, three-dimensional magnetic field configuration

中图分类号:  (Magnetic confinement and equilibrium)

  • 52.55.-s
52.55.Fa (Tokamaks, spherical tokamaks) 52.55.Dy (General theory and basic studies of plasma lifetime, particle and heat loss, energy balance, field structure, etc.)