Beamline performance of 500 keV negative ion-based NBI system for JT-60U

被引：4

作者：

Itoh, T ^{[1
]}

Akino, N ^{[1
]}

Aoyagi, T ^{[1
]}

Ebisawa, N ^{[1
]}

Honda, A ^{[1
]}

Inoue, T ^{[1
]}

Isozaki, N ^{[1
]}

Kawai, M ^{[1
]}

Kazawa, M ^{[1
]}

Koizumi, J ^{[1
]}

Kuriyama, M ^{[1
]}

Mogaki, K ^{[1
]}

Ohara, Y ^{[1
]}

Ohga, T ^{[1
]}

Okumura, Y ^{[1
]}

Oohara, H ^{[1
]}

Ooshima, K ^{[1
]}

Satoh, F ^{[1
]}

Seki, H ^{[1
]}

Toyokawa, R ^{[1
]}

Takenouchi, T ^{[1
]}

Usui, K ^{[1
]}

Watanabe, K ^{[1
]}

Yamazaki, T ^{[1
]}

Yamamoto, M ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Dept Fus Facil, NBI Facil Div, 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(97)00185-3

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：

Construction of the 500 keV negative-ion-based NBI system (N-NBI) with its maximum capability of 10 MW and 10 s for NE current drive and plasma core heating in high-density plasmas in JT-60 was completed in March 1996. The neutral beam injection into JT-60 with N-NBI has been performed since then. One of the key issues in the injection was how to control the bending magnetic field for residual ion beams. In N-NBI for JT-60, a stray magnetic field from the tokamak was actively used for bending of the residual ion beams. Combination of the stray magnetic field from JT-60 and the magnetic field of the deflecting coils was controlled sufficiently to successfully deposit residual ion beams at a constant point on the ion dump surface. The deposited positive and negative beam profiles on the ion dump were measured with an array of thermocouples brazed on the dump surface. This report describes the performance test of bending the residual ion beams and the measurement of the heat load on the ion dump for JT-60 N-NBI experiments. (C) 1998 Published by Elsevier Science S.A. All rights reserved.

引用

页码：123 / 128

页数：6

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