The effect of energetic particles on resistive wall mode stability in MAST

被引：27

作者：

Chapman, I. T. ^{[1
]}

Gryaznevich, M. P. ^{[1
]}

Howell, D. F. ^{[1
]}

Liu, Y. Q. ^{[1
]}

机构：

[1] EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2011年 / 53卷 / 06期

关键词：

ADVANCED TOKAMAK; DIII-D; ROTATIONAL STABILIZATION; FIELD AMPLIFICATION; POWER-PLANT; OPTIMIZATION; PLASMAS; SHEAR; KINK;

D O I：

10.1088/0741-3335/53/6/065022

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：

Resistive wall mode (RWM) stability limits have been probed by MHD spectroscopy and numerical modelling. MAST plasmas have operated up to beta(N) = 5.7, well above the predicted ideal kink no-wall limit or measured resonant field amplification limits due to a combination of rotation and kinetic damping. By varying the density, both the rotation and the fast ion distribution function have been changed dramatically. Detailed drift-kinetic modelling shows that whilst the contribution of energetic beam ions to RWM damping does increase at sufficiently high plasma rotation as to allow resonance with the fast ion precession frequency, the thermal ion damping always dominates over the fast ion contribution.

引用

页数：19

共 60 条

[41] THE PROSPECTS FOR MAGNETOHYDRODYNAMIC STABILITY IN ADVANCED TOKAMAK REGIMES [J].

MANICKAM, J ;

CHANCE, MS ;

JARDIN, SC ;

KESSEL, C ;

MONTICELLO, D ;

POMPHREY, N ;

REIMAN, A ;

WANG, C ;

ZAKHAROV, LE .

PHYSICS OF PLASMAS, 1994, 1 (05) :1601-1605

[42] IDEAL MHD STABILITY PROPERTIES OF PRESSURE DRIVEN MODES IN LOW SHEAR TOKAMAKS [J].

MANICKAM, J ;

POMPHREY, N ;

TODD, AMM .

NUCLEAR FUSION, 1987, 27 (09) :1461-1472

[43]

Mikhailovskii AB, 1997, PLASMA PHYS REP, V23, P844

[44] The HAGIS self-consistent nonlinear wave-particle interaction model [J].

Pinches, SD ;

Appel, LC ;

Candy, J ;

Sharapov, SE ;

Berk, HL ;

Borba, D ;

Breizman, BN ;

Hender, TC ;

Hopcraft, KI ;

Huysmans, GTA ;

Kerner, W .

COMPUTER PHYSICS COMMUNICATIONS, 1998, 111 (1-3) :133-149

[45] Observation and modeling of fast trapped ion losses due to neoclassical tearing modes [J].

Poli, Emanuele ;

Garcia-Munoz, Manuel ;

Fahrbach, Hans-Ulrich ;

Guenter, Sibylle .

PHYSICS OF PLASMAS, 2008, 15 (03)

[46] Reduced critical rotation for resistive-wall mode stabilization in a near-axisymmetric configuration [J].

Reimerdes, H. ;

Garofalo, A. M. ;

Jackson, G. L. ;

Okabayashi, M. ;

Strait, E. J. ;

Chu, M. S. ;

In, Y. ;

La Haye, R. J. ;

Lanctot, M. J. ;

Liu, Y. Q. ;

Navratil, G. A. ;

Solomon, W. M. ;

Takahashi, H. ;

Groebner, R. J. .

PHYSICAL REVIEW LETTERS, 2007, 98 (05)

[47] Cross-machine comparison of resonant field amplification and resistive wall mode stabilization by plasma rotation [J].

Reimerdes, H. ;

Hender, T. C. ;

Sabbagh, S. A. ;

Bialek, J. M. ;

Chu, M. S. ;

Garofalo, A. M. ;

Gryaznevich, M. P. ;

Howell, D. F. ;

Jackson, G. L. ;

La Haye, R. J. ;

Liu, Y. Q. ;

Menard, J. E. ;

Navratil, G. A. ;

Okabayashi, M. ;

Pinches, S. D. ;

Sontag, A. C. ;

Strait, E. J. ;

Zhu, W. ;

Bigi, M. ;

de Baar, M. ;

de Vries, P. ;

Gates, D. A. ;

Gohil, P. ;

Groebner, R. J. ;

Mueller, D. ;

Raman, R. ;

Scoville, J. T. ;

Solomon, W. M. .

PHYSICS OF PLASMAS, 2006, 13 (05)

[48] Measurement of the resistive-wall-mode stability in a rotating plasma using active MHD spectroscopy [J].

Reimerdes, H ;

Chu, MS ;

Garofalo, AM ;

Jackson, GL ;

La Haye, RJ ;

Navratil, GA ;

Okabayashi, M ;

Scoville, JT ;

Strait, EJ .

PHYSICAL REVIEW LETTERS, 2004, 93 (13) :135002-1

[49]

REIMERDES H, 2010, 23 IAEA FUS EN C DAE

[50] Resistive wall stabilized operation in rotating high beta NSTX plasmas [J].

Sabbagh, S. A. ;

Sontag, A. C. ;

Bialek, J. M. ;

Gates, D. A. ;

Glasser, A. H. ;

Menard, J. E. ;

Zhu, W. ;

Bell, M. G. ;

Bell, R. E. ;

Bondeson, A. ;

Bush, C. E. ;

Callen, J. D. ;

Chu, M. S. ;

Hegna, C. C. ;

Kaye, S. M. ;

Lao, L. L. ;

Leblanc, B. P. ;

Liu, Y. Q. ;

Maingi, R. ;

Mueller, D. ;

Shaing, K. C. ;

Stutman, D. ;

Tritzs, K. ;

Zhang, C. .

NUCLEAR FUSION, 2006, 46 (05) :635-644

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