Studies of boundary plasmas and fueling on the JFT-2M

被引：12

作者：

Ogawa, H

Miura, Y

Fukumoto, N

Ogawa, T

Hasegawa, K

Kasai, S

Kawashima, H

Kimura, H

Maeno, M

Nagata, M

Sengoku, S

Shibata, T

Uyama, T

Yamauchi, T

机构：

[1] Japan Atom Energy Res Inst, Naka Fus Res Estab, Tokai, Ibaraki 3111195, Japan

[2] Himeji Inst Technol, Dept Engn, Himeji, Hyogo 6712201, Japan

来源：

JOURNAL OF NUCLEAR MATERIALS | 1999年 / 266卷

关键词：

divertor plasma; detachment; divertor biasing; fueling; JFT-2M;

D O I：

10.1016/S0022-3115(98)00675-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the JFT-2M tokamak, the effects of baffle plates on the divertor and the scrape-off-layer (SOL) plasma and the fueling by the compact toroid (CT) injection have been investigated, and following results were obtained, A transition-like phenomenon in the divertor plasma, which occurs at the average main plasma density of about 2-2.5 x 10(19) m(-3) was observed and coincides with the abrupt drop of the temperature on the divertor plate from 9 to 3 eV. The negative biasing of both inside and outside divertor plates showed a significant improvement of the buffled divertor function, which was only observed when the direction of the E x B flow formed by the biasing in the SOL is from the inside to the outside. The particle fueling up to 3.4 x 10(18) was observed and increase of the W-MHD and decrease of P-RAD and V-loop were observed in discharges with the CT injection in Ohmic heating (OH) plasmas. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：623 / 628

页数：6

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