Contributions of Electron Cyclotron Waves to Performance in Advanced Regimes on DIII-D

被引：0

作者：

Petty, C. C. ^{[1
]}

Austin, M. E. ^{[2
]}

Brennan, D. P. ^{[3
]}

Burrell, K. H. ^{[1
]}

Deboo, J. C. ^{[1
]}

Doyle, E. J. ^{[4
]}

Ferron, J. R. ^{[1
]}

Garofalo, A. M. ^{[1
]}

Hillesheim, J. C. ^{[4
]}

Holcomb, C. T. ^{[5
]}

Holland, C. ^{[6
]}

Hyatt, A. W. ^{[1
]}

In, Y. ^{[7
]}

Jackson, G. L. ^{[1
]}

Lohr, J. ^{[1
]}

Luce, T. C. ^{[1
]}

Makowski, M. A. ^{[5
]}

Murakami, M. ^{[8
]}

Okabayashi, M. ^{[9
]}

Politzer, P. A. ^{[1
]}

Prater, R. ^{[1
]}

Reimerdes, H. ^{[10
]}

Rhodes, T. L.

Schmitz, L. ^{[4
]}

Smith, S. P. ^{[1
]}

Solomon, W. M. ^{[9
]}

Staebler, G. M. ^{[1
]}

Takahashi, R.

Turco, F. ^{[11
]}

Turnbull, A. D. ^{[1
]}

Van Zeeland, M. A. ^{[1
]}

Wang, G.

White, A. E. ^{[12
]}

Zeng, L. ^{[4
]}

机构：

[1] Gen Atom Co, POB 85608, San Diego, CA 92186 USA

[2] Univ Texas Austin, Austin, TX USA

[3] Univ Tulsa, Tulsa, OK 74104 USA

[4] Univ Calif Los Angeles, Los Angeles, CA 90024 USA

[5] Lawrence Livermore Natl Lab, Livermore, CA USA

[6] Univ Calif San Diego, La Jolla, CA 92093 USA

[7] Far Tech Inc, San Diego, CA USA

[8] Oak Ridge Natl Lab, Oak Ridge, TN USA

[9] Princeton Plasma Phys Lab, Princeton, NJ USA

[10] Columbia Univ, New York, NY 10027 USA

[11] Oak Ridge Inst Sci Educ, Oak Ridge, TN USA

[12] MIT, Cambridge, MA 02139 USA

来源：

RADIO FREQUENCY POWER IN PLASMAS: PROCEEDINGS OF THE 19TH TOPICAL CONFERENCE | 2011年 / 1406卷

关键词：

ECCD; noninductive current drive; transport; stability; CURRENT DRIVE;

D O I：

10.1063/1.3665023

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：

High-power electron cyclotron (EC) waves are used to increase performance in several Advanced Tokamak (AT) regimes on DIII-D where there is a simultaneous need for high noninductive current and high beta. In the Quiescent High-confinement mode (QH-mode), a direct measurement of the electron cyclotron current drive (ECCD) profile is made using modulation techniques, and a trapped electron mode (TEM) dominated regime with core T-e>T-i is created. In the "high q(min)" AT scenario, ECCD provides part of the off-axis noninductive current and helps to produce a tearing stable equilibrium. In the hybrid regime, strong central current drive from EC waves and other sources increases the noninductive current fraction to approximate to 100%. Surprisingly, the core safety factor remains above unity, meaning good alignment between the current drive profile and the desired plasma current profile is not necessary in this scenario.

引用

页数：8

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