EFFECT OF COLLISIONALITY AND DIAMAGNETISM ON THE PLASMA DYNAMO

被引:21
作者
JI, H
YAGI, Y
HATTORI, K
ALMAGRI, AF
PRAGER, SC
HIRANO, Y
SARFF, JS
SHIMADA, T
MAEJIMA, Y
HAYASE, K
机构
[1] ELECTROTECH LAB, PLASMA SECT, TSUKUBA, IBARAKI 305, JAPAN
[2] UNIV WISCONSIN, DEPT PHYS, MADISON, WI 53706 USA
关键词
D O I
10.1103/PhysRevLett.75.1086
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Fluctuation-induced dynamo electric fields are measured over a wide range of electron collisionality in the edge of TPE-1RM20 reversed-field pinch (RFP). In the collisionless region the magnetohydrodynamic dynamo alone can sustain the parallel current, while in the collisional region a new dynamo mechanism resulting from the fluctuations in the electron diamagnetic drift becomes dominant. A comprehensive picture of the RFP dynamo emerges by combining with earlier results from MST and REPUTE RFPs.
引用
收藏
页码:1086 / 1089
页数:4
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