Operation of the negative-ion based NBI for JT-60U

被引：34

作者：

Kuriyama, M ^{[1
]}

Akino, N ^{[1
]}

Aoyagi, T ^{[1
]}

Ebisawa, N ^{[1
]}

Isozaki, N ^{[1
]}

Honda, A ^{[1
]}

Inoue, T ^{[1
]}

Itoh, T ^{[1
]}

Kawai, M ^{[1
]}

Kazawa, M ^{[1
]}

Koizumi, J ^{[1
]}

Mogaki, K ^{[1
]}

Ohara, Y ^{[1
]}

Ohga, T ^{[1
]}

Okumura, Y ^{[1
]}

Oohara, H ^{[1
]}

Ohshima, K ^{[1
]}

Satoh, F ^{[1
]}

Takenouchi, T ^{[1
]}

Toyokawa, Y ^{[1
]}

Usui, K ^{[1
]}

Watanabe, K ^{[1
]}

Yamamoto, M ^{[1
]}

Yamazaki, T ^{[1
]}

Zhou, C ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Naka Fus Res Estab, Naka, Ibaraki 31101, Japan

来源：

FUSION ENGINEERING AND DESIGN | 1998年 / 39-40卷

关键词：

D O I：

10.1016/S0920-3796(98)00183-5

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：

A beam injection experiment with the negative-ion based NBI system (N-NBI) started in March 1996 on JT-60U. After achieving the first neutral beam injection of 180 keV, similar to 0.1 MW for 0.4 s into the JT-60U plasmas, the operation parameters of the ion source and power supply had been optimized for increasing the beam energy and beam current. In September 1996, a deuterium neutral beam of 2.5 MW at 350 keV was injected into JT-60U using two ion sources. In the operation with hydrogen at the beginning of 1997, a negative ion beam current of 18.4 A at 350 keV has been obtained, and a neutral beam of 3.2 MW at 350 keV for 1 s has been injected into the plasma with one ion source. A neutralization efficiency of negative ion beam has been confirmed to be about 60% at the beam energies of 250-385 keV as predicted theoretically. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：115 / 121

页数：7

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