Sensitivity of the magnetic axis to variations in the magnetic field

被引：1

作者：

Hudson, S. R. ^{[1
]}

Guinchard, S. ^{[2
]}

Sengupta, W. ^{[3
]}

机构：

[1] Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA

[2] Ecole Polytech Fed Lausanne, Swiss Plasma Ctr, CH-1015 Lausanne, Switzerland

[3] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08543 USA

来源：

PHYSICS OF PLASMAS | 2025年 / 32卷 / 01期

关键词：

STELLARATOR; EQUILIBRIUM; EXISTENCE; STABILITY; PLASMA;

D O I：

10.1063/5.0241455

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Lagrangian variational principles are used to locate the magnetic axis and to determine its sensitivity to variations in the magnetic field. Only the change in the magnetic field on axis is required to determine, to lowest order, the location of the new magnetic axis. Using a simple example, namely, the magnetic field produced by a set of current-carrying filaments (a.k.a. coils), the variation in the coil geometry that induces the largest change in the magnetic axis is determined using singular value decomposition.

引用

页数：6

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