Interpretation of core localized Alfven eigenmodes in DIII-D and Joint European Torus reversed magnetic shear plasmas

被引：29

作者：

Kramer, G. J.

Nazikian, R.

Alper, B.

de Baar, M.

Berk, H. L.

Fu, G. -Y.

Gorelenkov, N. N.

McKee, G.

Pinches, S. D.

Rhodes, T. L.

Sharapov, S. E.

Solomon, W. M.

van Zeeland, M. A.

机构：

[1] Princeton Plasma Phys Labs, Princeton, NJ 08543 USA

[2] UKAEA, EURATOM, Fus Associates, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[3] Inst Fus Studies, Austin, TX 78712 USA

[4] Univ Wisconsin, Madison, WI 53706 USA

[5] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany

[6] Univ Calif Los Angeles, Inst Plasma & Fus Res, Dept Elect Engn, Los Angeles, CA 90024 USA

[7] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37831 USA

来源：

PHYSICS OF PLASMAS | 2006年 / 13卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.2186049

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：

Reversed shear Alfven eigenmodes (RSAE) that were observed in the Joint European Torus (JET) [P. H. Rebut and B. E. Keen, Fusion Technol.11, 13 (1987)] and DIII-D [J. L. Luxon, Nucl. Fusion42, 614 (2002)] are studied with the ideal magnetohydrodynamic code NOVA-K [C. Z. Cheng, Phys. Rep.211, 1 (1992)]. It was found that the frequency behavior of the RSAEs can be described accurately by the NOVA-K code when plasma compressibility effects and toroidal plasma rotation are taken into account. For the mode activity on JET, the calculated drive exceeds the mode damping rate, consistent with experimental observations, while on DIII-D the growth rate from neutral beam ions for modes with high toroidal mode numbers is insufficient to account for the excitation of the modes and a major part of the drive comes from the background plasma. (c) 2006 American Institute of Physics.

引用

页数：7

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