Plasma startup by neutral beam injection in the Large Helical Device

被引：38

作者：

Kaneko, O ^{[1
]}

Takeiri, Y ^{[1
]}

Tsumori, K ^{[1
]}

Oka, Y ^{[1
]}

Osakabe, M ^{[1
]}

Funaba, H ^{[1
]}

Morita, S ^{[1
]}

Peterson, BJ ^{[1
]}

Sakakibara, S ^{[1
]}

Tanaka, K ^{[1
]}

Mutoh, T ^{[1
]}

Sato, M ^{[1
]}

Ohkubo, K ^{[1
]}

Komori, A ^{[1
]}

Yamada, H ^{[1
]}

Ohyabu, N ^{[1
]}

Kawahata, K ^{[1
]}

Motojima, O ^{[1
]}

机构：

[1] Natl Inst Fus Sci, Oroshi, Toki, Japan

来源：

NUCLEAR FUSION | 1999年 / 39卷 / 09期

关键词：

D O I：

10.1088/0029-5515/39/9/302

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：

Plasma was successfully built up by neutral beams alone in LHD. After injecting 1.6 MW neutral beams through a low density neutral gas target of 10(-3) Pa for about 0.3 s; fully ionized plasma of 10(18) m(-3) was generated. Keeping the beams on, additional gas puff could increase the plasma density sufficiently for absorption of the beam, and a dense plasma of 5 x 10(19) m(-3) was sustained afterwards. This technique is specific to a helical system that has a vacuum confining magnetic field structure, and no other assisting heating tools are required such as ECH, which has been used for producing target plasma with NBI.

引用

页码：1087 / 1091

页数：5

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