Feedback stabilization of rigid axisymmetric modes in tokamaks

S. C. Jardin; D. A. Larrabee

doi:10.1088/0029-5515/22/8/011

Feedback stabilization of rigid axisymmetric modes in tokamaks

S. C. Jardin
, D. A. Larrabee

PPPL Theory

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

Abstract

Non-circular tokamak plasmas can be unstable to ideal-MHD axisymmetric instabilities. Passive conductors with finite resistivity will at best slow down these instabilities to the resistive (L/R) time of the conductors. It is demonstrated that a simple active feedback system far from the plasma which responds on this resistive time can stabilize the system provided its mutual inductance with the passive coils is small enough.

Original language	English (US)
Pages (from-to)	1095-1098
Number of pages	4
Journal	Nuclear Fusion
Volume	22
Issue number	8
DOIs	https://doi.org/10.1088/0029-5515/22/8/011
State	Published - Aug 1982

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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Cite this

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title = "Feedback stabilization of rigid axisymmetric modes in tokamaks",

abstract = "Non-circular tokamak plasmas can be unstable to ideal-MHD axisymmetric instabilities. Passive conductors with finite resistivity will at best slow down these instabilities to the resistive (L/R) time of the conductors. It is demonstrated that a simple active feedback system far from the plasma which responds on this resistive time can stabilize the system provided its mutual inductance with the passive coils is small enough.",

author = "Jardin, \{S. C.\} and Larrabee, \{D. A.\}",

year = "1982",

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AU - Jardin, S. C.

AU - Larrabee, D. A.

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N2 - Non-circular tokamak plasmas can be unstable to ideal-MHD axisymmetric instabilities. Passive conductors with finite resistivity will at best slow down these instabilities to the resistive (L/R) time of the conductors. It is demonstrated that a simple active feedback system far from the plasma which responds on this resistive time can stabilize the system provided its mutual inductance with the passive coils is small enough.

AB - Non-circular tokamak plasmas can be unstable to ideal-MHD axisymmetric instabilities. Passive conductors with finite resistivity will at best slow down these instabilities to the resistive (L/R) time of the conductors. It is demonstrated that a simple active feedback system far from the plasma which responds on this resistive time can stabilize the system provided its mutual inductance with the passive coils is small enough.

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UR - https://www.scopus.com/pages/publications/0020166468#tab=citedBy

U2 - 10.1088/0029-5515/22/8/011

DO - 10.1088/0029-5515/22/8/011

M3 - Article

AN - SCOPUS:0020166468

SN - 0029-5515

VL - 22

SP - 1095

EP - 1098

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 8

ER -

Feedback stabilization of rigid axisymmetric modes in tokamaks

Abstract

All Science Journal Classification (ASJC) codes

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