计算物理 ›› 1993, Vol. 10 ›› Issue (1): 69-75.

• 论文 • 上一篇    下一篇

托卡马克中等离子体的平衡重建

朱思铮   

  1. 中国科学院等离子体物理所, 合肥 230031
  • 收稿日期:1991-10-13 修回日期:1992-05-24 出版日期:1993-03-25 发布日期:1993-03-25
  • 基金资助:
    国家自然科学基金

RECONSTRUCTION OF PLASMA EQUILIBRIUMIN TOKAMAK

Zhu Sizheng   

  1. Institute of Plasma Physics, Academia Sinica, Hefei 230031
  • Received:1991-10-13 Revised:1992-05-24 Online:1993-03-25 Published:1993-03-25

摘要: 本文描述了用外部磁测量信号,和等离子体总电流,以及角向βp的测量值,重建托卡马克中等高子体半衡的方法。对圆截面、非圆截面和偏滤器位形;对不同的电流分布分别作了重建计算。数值研究了测量误差、探针布置对重建结果的影响。

关键词: 不适定, MHD平衡约束, 线性最小二乘, 奇异值分解

Abstract: A method is described for reconstructing tokatnak equilibria from measurements of external magnetic signals and also of the total plasma current and average poloidal beta. Calculations are performed to determine circular, non-circular and diverted configurations and to reconstruct different types of current profiles. Also carried out is a numerical study of the effect of measurement errors and arrangement of detectors on the quality of reconstruction.

Key words: ill-posed, MHD equilibrium constraint, linear least-squares, singular value decomposition