Model for the Error Field Effect on Resistive Wall Modes

Model for the Error Field Effect on Resistive Wall Modes

A semianalytic multimode model that includes the instantaneous influence of a static error field on the resistive wall mode (RWM) is presented. The asymptotic behavior of the RWM as the marginal stability is approached, including the influence of the error field, is discussed. The influence of neigh...

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Veröffentlicht in:Contributions to plasma physics (1988) 2013-03, Vol.53 (3), p.214-233
1. Verfasser: Miron, I. G.
Format: Artikel
Sprache:eng
Schlagworte:
Asymptotic properties
error field
Errors
Feedback
Permissible error
Plasma physics
resistive wall mode
Stability
Tokamak
Tokamak devices
Walls
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Zusammenfassung:A semianalytic multimode model that includes the instantaneous influence of a static error field on the resistive wall mode (RWM) is presented. The asymptotic behavior of the RWM as the marginal stability is approached, including the influence of the error field, is discussed. The influence of neighboring modes on the central harmonic modes is explored, allowing a less destabilizing error field spectrum to be proposed. The model has been applied to a plasma surrounded by a HBT‐EP tokamak type feedback system. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:0863-1042
1521-3986
DOI:10.1002/ctpp.201200082