Modeling of feedback and rotation stabilization of the resistive wall mode in tokamaks

M. S. Chu; A. Bondeson; M. S. Chance; Y. Q. Liu; A. M. Garofalo; A. H. Glasser; G. L. Jackson; R. J. La Haye; L. L. Lao; G. A. Navratil; M. Okabayashi; H. Remierdes; J. T. Scoville; E. J. Strait

doi:10.1063/1.1652876

Modeling of feedback and rotation stabilization of the resistive wall mode in tokamaks

M. S. Chu, A. Bondeson, M. S. Chance, Y. Q. Liu, A. M. Garofalo, A. H. Glasser, G. L. Jackson, R. J. La Haye, L. L. Lao, G. A. Navratil, M. Okabayashi, H. Remierdes, J. T. Scoville, E. J. Strait

Institute of Space and Plasma Sciences

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52 Citations (Scopus)

Abstract

The modeling of active magnetic feedback and plasma rotation stabilization of the resistive wall mode (RWM) in tokamaks was analyzed. A complete solution for the feedback issue was obtained by assuming the plasma obeys ideal magnetohydrodynamics (MHD) and utilizing a normal mode approach (NMA), for plasma with low rotation. It was shown that poloidal sensors are more effective than radial sensors and coils inside of the vacuum vessel more effective than outside. It was found that the effect of rotation stabilization of the plasma depends on the plasma dissipation model. The results show that rotation reduces the feedback gain required for RWM stabilization.

Original language	English
Pages (from-to)	2497-2504
Number of pages	8
Journal	Physics of Plasmas
Volume	11
Issue number	5 PART 2
DOIs	https://doi.org/10.1063/1.1652876
Publication status	Published - 2004 May

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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Chu, M. S., Bondeson, A., Chance, M. S., Liu, Y. Q., Garofalo, A. M., Glasser, A. H., Jackson, G. L., La Haye, R. J., Lao, L. L., Navratil, G. A., Okabayashi, M., Remierdes, H., Scoville, J. T., & Strait, E. J. (2004). Modeling of feedback and rotation stabilization of the resistive wall mode in tokamaks. Physics of Plasmas, 11(5 PART 2), 2497-2504. https://doi.org/10.1063/1.1652876

Chu, M. S. ; Bondeson, A. ; Chance, M. S. ; Liu, Y. Q. ; Garofalo, A. M. ; Glasser, A. H. ; Jackson, G. L. ; La Haye, R. J. ; Lao, L. L. ; Navratil, G. A. ; Okabayashi, M. ; Remierdes, H. ; Scoville, J. T. ; Strait, E. J. / Modeling of feedback and rotation stabilization of the resistive wall mode in tokamaks. In: Physics of Plasmas. 2004 ; Vol. 11, No. 5 PART 2. pp. 2497-2504.

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abstract = "The modeling of active magnetic feedback and plasma rotation stabilization of the resistive wall mode (RWM) in tokamaks was analyzed. A complete solution for the feedback issue was obtained by assuming the plasma obeys ideal magnetohydrodynamics (MHD) and utilizing a normal mode approach (NMA), for plasma with low rotation. It was shown that poloidal sensors are more effective than radial sensors and coils inside of the vacuum vessel more effective than outside. It was found that the effect of rotation stabilization of the plasma depends on the plasma dissipation model. The results show that rotation reduces the feedback gain required for RWM stabilization.",

author = "Chu, {M. S.} and A. Bondeson and Chance, {M. S.} and Liu, {Y. Q.} and Garofalo, {A. M.} and Glasser, {A. H.} and Jackson, {G. L.} and {La Haye}, {R. J.} and Lao, {L. L.} and Navratil, {G. A.} and M. Okabayashi and H. Remierdes and Scoville, {J. T.} and Strait, {E. J.}",

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Modeling of feedback and rotation stabilization of the resistive wall mode in tokamaks. / Chu, M. S.; Bondeson, A.; Chance, M. S.; Liu, Y. Q.; Garofalo, A. M.; Glasser, A. H.; Jackson, G. L.; La Haye, R. J.; Lao, L. L.; Navratil, G. A.; Okabayashi, M.; Remierdes, H.; Scoville, J. T.; Strait, E. J.

In: Physics of Plasmas, Vol. 11, No. 5 PART 2, 05.2004, p. 2497-2504.

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

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AU - Chu, M. S.

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AU - Liu, Y. Q.

AU - Garofalo, A. M.

AU - Glasser, A. H.

AU - Jackson, G. L.

AU - La Haye, R. J.

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AU - Navratil, G. A.

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AB - The modeling of active magnetic feedback and plasma rotation stabilization of the resistive wall mode (RWM) in tokamaks was analyzed. A complete solution for the feedback issue was obtained by assuming the plasma obeys ideal magnetohydrodynamics (MHD) and utilizing a normal mode approach (NMA), for plasma with low rotation. It was shown that poloidal sensors are more effective than radial sensors and coils inside of the vacuum vessel more effective than outside. It was found that the effect of rotation stabilization of the plasma depends on the plasma dissipation model. The results show that rotation reduces the feedback gain required for RWM stabilization.

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Modeling of feedback and rotation stabilization of the resistive wall mode in tokamaks

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