An Alfven eigenmode similarity experiment

被引：20

作者：

Heidbrink, WW ^{[1
]}

Fredrickson, E

Gorelenkov, NN

Hyatt, AW

Kramer, G

Luo, Y

机构：

[1] Univ Calif Irvine, Irvine, CA 92717 USA

[2] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[3] Gen Atom Co, San Diego, CA USA

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2003年 / 45卷 / 06期

关键词：

D O I：

10.1088/0741-3335/45/6/311

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：

The major radius dependence of Alfven mode stability is studied by creating plasmas with similar minor radius, shape, magnetic field (0.5 T), density (n(e) similar or equal to 3 x 10(19) m(-3)), electron temperature (1.0 keV) and beam ion population (near-tangential 80 keV deuterium injection) on both NSTX and DIII-D. The major radius of NSTX is half the major radius of DIII-D. The super-Alfvenic beam ions that drive the modes have overlapping values of upsilon(f)/upsilon(A) in the two devices. Observed beam-driven instabilities include toroidicity-induced Alfven eigenmodes (TAE). The stability threshold for the TAE is similar in the two devices. As expected theoretically, the most unstable toroidal mode number n is larger in DIII-D.

引用

页码：983 / 997

页数：15

共 34 条

[1] ENERGETIC PARTICLE DRIVE FOR TOROIDICITY-INDUCED ALFVEN EIGENMODES AND KINETIC TOROIDICITY-INDUCED ALFVEN EIGENMODES IN A LOW-SHEAR TOKAMAK [J].