The effect of the radial electric field on neoclassical flows in a tokamak pedestal

被引：14

作者：

Kagan, Grigory ^{[1
]}

Marr, Kenneth D. ^{[2
]}

Catto, Peter J. ^{[2
]}

Landreman, Matt ^{[2
]}

Lipschultz, Bruce ^{[2
]}

McDermott, Rachael ^{[3
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[2] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA

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

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2011年 / 53卷 / 02期

关键词：

TRANSPORT; PLASMA; ROTATION;

D O I：

10.1088/0741-3335/53/2/025008

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：

Conventional formulae for neoclassical flows become inapplicable in subsonic tokamak pedestals with poloidal ion gyroradius scales since the associated strong radial electric field modifies the background ion orbits. The discrepancy has been measured to be substantial in the banana regime on Alcator C-Mod. We demonstrate that new expressions for the poloidal ion flow in the pedestal, that include the effect of the background electric field, are consistent with the boron impurity flow measurements in Alcator C-Mod.

引用

页数：9

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