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

被引：1

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

共 15 条

[1] Quiescent double barrier high-confinement mode plasmas in the DIII-D tokamak
Burrell, KH
Austin, ME
Brennan, DP
DeBoo, JC
Doyle, EJ
Fenzi, C
Fuchs, C
Gohil, P
Greenfield, CM
Groebner, RJ
Lao, LL
Luce, TC
Makowski, MA
McKee, GR
Moyer, RA
Petty, CC
Porkolab, M
Rettig, CL
Rhodes, TL
Rost, JC
Stallard, BW
Strait, EJ
Synakowski, EJ
Wade, MR
Watkins, JG
West, WP
[J]. PHYSICS OF PLASMAS, 2001, 8 (05) : 2153 - 2162
[2] Optimization of the safety factor profile for high noninductive current fraction discharges in DIII-D
Ferron, J. R.
Holcomb, C. T.
Luce, T. C.
Politzer, P. A.
Turco, F.
White, A. E.
DeBoo, J. C.
Doyle, E. J.
Hyatt, A. W.
La Haye, R. J.
Murakami, M.
Petrie, T. W.
Petty, C. C.
Rhodes, T. L.
Zeng, L.
[J]. NUCLEAR FUSION, 2011, 51 (06)
[3] Glasser A., 1997, AM PHYS SOC, V42, P1848
[4] A multichannel, frequency-modulated, tunable Doppler backscattering and reflectometry system
Hillesheim, J. C.
Peebles, W. A.
Rhodes, T. L.
Schmitz, L.
Carter, T. A.
Gourdain, P. -A.
Wang, G.
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2009, 80 (08)
[5] RAY TRACING STUDY OF THE ELECTRON-CYCLOTRON CURRENT DRIVE IN DIII-D USING 60 GHZ
MATSUDA, K
[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 1989, 17 (01) : 6 - 11
[6] Magnetic-Flux Pumping in High-Performance, Stationary Plasmas with Tearing Modes
Petty, C. C.
Austin, M. E.
Holcomb, C. T.
Jayakumar, R. J.
La Haye, R. J.
Luce, T. C.
Makowski, M. A.
Politzer, P. A.
Wade, M. R.
[J]. PHYSICAL REVIEW LETTERS, 2009, 102 (04)
[7] Petty C.C., 2005, ELECT CYCLOTRON EMIS, P189
[8] Petty CC, 2005, AIP CONF PROC, V787, P265, DOI 10.1063/1.2098238
[9] LINEAR-STABILITY OF RESISTIVE MHD MODES - AXISYMMETRICAL TOROIDAL COMPUTATION OF THE OUTER REGION MATCHING DATA
PLETZER, A
BONDESON, A
Dewar, RL
[J]. JOURNAL OF COMPUTATIONAL PHYSICS, 1994, 115 (02) : 530 - 549
[10] Schmitz L., NUCL FUSION UNPUB

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