Recent progress in JT-60U experiments with W-shaped divertor

被引：0

作者：

Takizuka, T ^{[1
]}

机构：

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

来源：

FUSION TECHNOLOGY | 1998年 / 34卷 / 03期

关键词：

D O I：

10.13182/FST98-A11963632

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Recent experimental results of power and particle control in JT-60U with W-shaped pumped divertor are presented. Backflow of carbon impurities towards x point is decreased by the dome as well as by the gas puff from the main plasma. Heat load on divertor plates is reduced by the detached plasma at high density and radiative plasma by neon seeding. Effective helium exhaust is demonstrated for helium-beam-injected plasmas. Results of high-confinement experiments are also shown. Strongly heated ELMy H-mode plasmas are sustained during 9 s without increasing the impurity contamination. High Q(DT)(eq) similar to 1 is obtained in the low I-p regime of the reversed shear plasmas. Progress in the negative-ion-based neutral beam injection experiments is finally introduced.

引用

页码：301 / 307

页数：7

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