Present status of the negative ion based neutral beam injector for JT-60U

被引：13

作者：

Ohga, T ^{[1
]}

Umeda, N

Akino, N

Ebisawa, N

Grisham, L

Hikita, S

Honda, A

Itoh, T

Kawai, M

Kazawa, M

Kuriyama, M

Kusaka, M

Mogaki, K

Oohara, H

Pengyuan, L

Satoh, F

Seki, H

Tanai, Y

Toyokawa, Y

Usui, K

Yamamoto, T

Yamazaki, H

机构：

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

[2] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[3] SW Inst Phys China, Chengdu, Peoples R China

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2002年 / 73卷 / 02期

关键词：

D O I：

10.1063/1.1431421

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The negative ion based neutral beam injector heating system for JT-60U has contributed to core plasma heating and noninductive current drive experiments on JT-60U. For increasing further the beam power and beam pulse duration, the serious issue is improvement of source plasma nonuniformity in the ion source. Various countermeasures have been devised to solve the nonuniformity. The first is to adjust the spatial distribution of the arc discharge through regulating the arc current limiting resistors to be connected in series to each of the filament groups. The second is to change the arc discharge mode through controlling the filament temperature. These measures have been found to be very effective. (C) 2002 American Institute of Physics.

引用

页码：1058 / 1060

页数：3

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