Measurement of natural plasma flow along the field lines in the scrape-off layer on the JT-60U divertor tokamak

被引：68

作者：

Asakura, N ^{[1
]}

Sakurai, S ^{[1
]}

Shimada, M ^{[1
]}

Koide, Y ^{[1
]}

Hosogane, N ^{[1
]}

Itami, K ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Naka Fus Res Estab, Naka, Ibaraki 3110193, Japan

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.84.3093

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The plasma profile and parallel plasma flow in the scrape-off layer (SOL) were systematically measured using reciprocating Mach probes installed at the outer midplane and near the divertor magnetic null (x point) in the JT-60U tokamak with a single null divertor. For the ion vertical drift due to the toroidal magnetic field gradient lion del B drift) directed cowards the divertor, SOL plasma flow along the magnetic field lines away from the: divertor ("flow reversal") was discovered at the midplane far from the divertor. A quantitative evaluation of the ion "Pfirsch-Schluter now," wherein the parallel flow is naturally produced in a toroidal plasma, was consistent with the measurement.

引用

页码：3093 / 3096

页数：4

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