Pedestal characteristics and extended high-βp ELMy H-mode regime in JT-60U

被引：79

作者：

Kamada, Y ^{[1
]}

Takenaga, H

Isayama, A

Hatae, T

Urano, H

Kubo, H

Takizuka, T

Miura, Y

机构：

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

[2] Hokkaido Univ, Sapporo, Hokkaido 060, Japan

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2002年 / 44卷

关键词：

D O I：

10.1088/0741-3335/44/5A/328

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：

With the high-field-side multiple pellet injection into high-triangularity high-beta(p) type I ELMy H-mode discharges, JT-60U has extended the density range with a favourable integrated performance. The pellet injected discharge has a high pedestal pressure compared with the gas fuelled discharges, and the pedestal temperature does not decrease even at high pedestal density. At high triangularity, the pedestal beta(p) and the edge alpha-parameter increase with increasing total beta(p). Possible linkage among pedestal and core parameters has been proposed based on a variety of JT-60U experiments. Grassy ELMy discharges have been achieved at the low safety factor regime q(95) < 4 for the first time in JT-60U with high triangularity (similar to0.6). The full non-inductive operation has been demonstrated with grassy ELMs.

引用

页码：A279 / A286

页数：8

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