Discharges in the JET tokamak where the safety factor profile is identified as the critical factor for triggering internal transport barriers

被引：44

作者：

Eriksson, LG ^{[1
]}

Fourment, C ^{[1
]}

Fuchs, V ^{[1
]}

Litaudon, X ^{[1
]}

Challis, CD ^{[1
]}

Crisanti, F ^{[1
]}

Esposito, B ^{[1
]}

Garbet, X ^{[1
]}

Giroud, C ^{[1
]}

Hawkes, N ^{[1
]}

Maget, P ^{[1
]}

Mazon, D ^{[1
]}

Tresset, G ^{[1
]}

机构：

[1] CEN Cadarache, EURATOM Assoc, CEA Fus Controlee, F-13108 St Paul Les Durance, France

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.88.145001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Joint European Torus discharges which demonstrate the critical role the safety factor profile, q, can play in the formation of internal transport barriers (ITB) are examined. In these discharges, the target parameters, including the E x B flows, were kept virtually the same, except for the q pro le. In a discharge with a nonmonotonic q, an ITB was triggered whereas a discharge with monotone q made no such transition. Thus, there is strong evidence that the q pro le was the critical factor for the triggering of an ITB. Possible interpretations of this finding are discussed.

引用

页码：145001/1 / 145001/4

页数：4

共 39 条

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[33] Definition of the profile gain factor and its application for internal transport barrier analysis in torus plasmas
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[34] The effect of safety factor profile on transport in steady-state, high-performance scenarios
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Luce, T. C.
DeBoo, J. C.
Park, J. M.
White, A. E.
Turco, F.
Rhodes, T. L.
Doyle, E. J.
Schmitz, L.
Van Zeeland, M. A.
McKee, G. R.
PHYSICS OF PLASMAS, 2012, 19 (03)
[35] Physics-based Control-oriented Modeling of the Safety Factor Profile Dynamics in High Performance Tokamak Plasmas
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Shi, Wenyu
Besseghir, Karim
Lister, Jo
Kritz, Arnold
Schuster, Eugenio
Luce, Tim C.
Walker, Michael L.
Humphreys, David A.
Ferron, John R.
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[36] Robust Control of the Safety Factor Profile and Stored Energy Evolutions in High Performance Burning Plasma Scenarios in the ITER Tokamak
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[37] Real-time control of the safety factor profile diagnosed by magneto-hydrodynamic activity on the Tore Supra tokamak
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Lennholm, M.
Ekedahl, A.
Pastor, P.
Aniel, T.
Bremond, S.
Decker, J.
Devynck, P.
Dumont, R.
Giruzzi, G.
Maget, P.
Mazon, D.
Merle, A.
Molina, D.
Moreau, P.
Saint-Laurent, F.
Segui, J. L.
Zarzoso, D.
NUCLEAR FUSION, 2011, 51 (07)
[38] Time evolution of the energy confinement time, internal inductance and effective edge safety factor on IR-T1 tokamak
Elahi, A. Salar
Ghoranneviss, M.
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[39] SAFETY FACTOR ON THE AXIS OF A TOKAMAK DURING OHMICALLY HEATED SAWTOOTHING DISCHARGES FROM A LOCALIZED MEASUREMENT OF CIRCULAR-POLARIZATION OF THE LI-I-6708-A-LINE
HUANG, LK
FINKENTHAL, M
WROBLEWSKI, D
MOOS, HW
WEST, WP
THOMAS, DM
THOMAS, MP
YANG, XZ
PHILLIPS, PE
WOOTTON, AJ
BENGTSON, RD
BOEDO, JA
BRAVENEC, RV
CHEN, JY
CIMA, G
GENTLE, KW
MCCOOL, SC
RICHARDS, BU
ROWAN, WL
SING, DC
WENZEL, KW
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