PEAKED DENSITY PROFILES IN CIRCULAR-LIMITER H MODES ON THE TFTR TOKAMAK

被引：59

作者：

BUSH, CE

GOLDSTON, RJ

SCOTT, SD

FREDRICKSON, ED

MCGUIRE, K

SCHIVELL, J

TAYLOR, G

BARNES, CW

BELL, MG

BOIVIN, RL

BRETZ, N

BUDNY, RV

CAVALLO, A

EFTHIMION, PC

GREK, B

HAWRYLUK, R

HILL, K

HULSE, RA

JANOS, A

JOHNSON, DW

KILPATRICK, S

MANOS, DM

MANSFIELD, DK

MEADE, DM

PARK, H

RAMSEY, AT

STRATTON, B

SYNAKOWSKI, EJ

TOWNER, HH

WIELAND, RM

ZARNSTORFF, MC

ZWEBEN, S

机构：

[1] Princeton Plasma Physics Laboratory, Princeton University, Princeton

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.65.424

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Circular-limiter H modes are obtained on the TFTR tokamak during high-power neutral-beam heating. The transition is usually from the supershot to the H mode rather than the usual L to H transition, and thus is obtained in a low-recycling environment with core fueling mainly from the heating beams. As a result, the density and pressure profiles are highly peaked at the center. The global confinement time E is enhanced over L-mode scaling by up to 2.5 times. The onset of edge-localized MHD modes shortly after the H-mode transition appears to limit E. Limiter H modes of up to 1.5 s duration have been realized. © 1990 The American Physical Society.

引用

页码：424 / 427

页数：4

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