GLOBAL CONFINEMENT AND DISCRETE DYNAMO ACTIVITY IN THE MST REVERSED-FIELD PINCH

被引：73

作者：

HOKIN, S ^{[1
]}

ALMAGRI, A ^{[1
]}

ASSADI, S ^{[1
]}

BECKSTEAD, J ^{[1
]}

CHARTAS, G ^{[1
]}

CROCKER, N ^{[1
]}

CUDZINOVIC, M ^{[1
]}

DENHARTOG, D ^{[1
]}

DEXTER, R ^{[1
]}

HOLLY, D ^{[1
]}

PRAGER, S ^{[1
]}

REMPEL, T ^{[1
]}

SARFF, J ^{[1
]}

SCIME, E ^{[1
]}

SHEN, W ^{[1
]}

SPRAGINS, C ^{[1
]}

SPROTT, C ^{[1
]}

STARR, G ^{[1
]}

STONEKING, M ^{[1
]}

WATTS, C ^{[1
]}

NEBEL, R ^{[1
]}

机构：

[1] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1991年 / 3卷 / 08期

关键词：

D O I：

10.1063/1.859642

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：

Results obtained on the Madison Symmetric Torus (MST) reversed-field pinch [Fusion Technol. 19, 131 (1991)] after installation of the design poloidal field winding are presented. Values of beta-theta-e0 = 2-mu-0n(e0)T(e0)/B-theta-2 (a) approximately 12% are achieved in low-current (I = 220 kA) operation; here, n(e0) and T(e0) are central electron density and temperature, and B-theta (a) is the poloidal magnetic field at the plasma edge. An observed decrease in beta-theta-e0 with increasing plasma current may be due to inadequate fueling, enhanced wall interaction, and the growth of a radial field error at the vertical cut in the shell at high current. Energy confinement time varies little with plasma current, lying in the range of 0.5-1.0 msec. Strong discrete dynamo activity is present, characterized by the coupling of m = 1, n = 5-7 modes leading to an m = 0, n = 0 crash (m and n are poloidal and toroidal mode numbers). The m = 0 crash generates toroidal flux and produces a small (2.5%) increase in plasma current.

引用

页码：2241 / 2246

页数：6

共 25 条

[1] TIME EVOLUTION OF ELECTRON-TEMPERATURE AND DENSITY IN THE ETA-BETA-II REVERSED FIELD PINCH [J].