MAGNETIC RECONNECTION OF PLASMA TOROIDS WITH COHELICITY AND COUNTERHELICITY

被引:149
作者
YAMADA, M [1 ]
ONO, Y [1 ]
HAYAKAWA, A [1 ]
KATSURAI, M [1 ]
PERKINS, FW [1 ]
机构
[1] UNIV TOKYO,DEPT ELECT ENGN,TOKYO 113,JAPAN
关键词
D O I
10.1103/PhysRevLett.65.721
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Magnetic reconnection phenomena are investigated taking into account all three vector components of the magnetic field in a laboratory experiment. Two toroidal magnetized plasmas carrying identical toroidal currents and poloidal field configurations are made to collide, thereby inducing magnetic reconnection. The direction of the toroidal field plays an important role in the merging process. It is found that plasmas of antiparallel helicity merge much faster than those of parallel helicity. It is also found that the reconnection rate is proportional to the initial relative velocity of the two plasma tori, suggesting that magnetic reconnection, in the present experiment, is a forced phenomenon. © 1990 The American Physical Society.
引用
收藏
页码:721 / 724
页数:4
相关论文
共 24 条
[1]  
[Anonymous], 1958, NUOVO CIMENTO
[2]  
Finn J. M., 1985, Comments on Plasma Physics and Controlled Fusion, V9, P111
[4]   FINITE-RESISTIVITY INSTABILITIES OF A SHEET PINCH [J].
FURTH, HP ;
KILLEEN, J ;
ROSENBLUTH, MN .
PHYSICS OF FLUIDS, 1963, 6 (04) :459-484
[5]   EXPERIMENTAL-OBSERVATIONS OF THE TEARING OF AN ELECTRON CURRENT SHEET [J].
GEKELMAN, W ;
PFISTER, H .
PHYSICS OF FLUIDS, 1988, 31 (07) :2017-2025
[6]   FORMATION OF A SPHEROMAK PLASMA CONFIGURATION [J].
GOLDENBAUM, GC ;
IRBY, JH ;
CHONG, YP ;
HART, GW .
PHYSICAL REVIEW LETTERS, 1980, 44 (06) :393-396
[7]   A THEORETICAL FOUNDATION OF GENERAL MAGNETIC RECONNECTION [J].
HESSE, M ;
SCHINDLER, K .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1988, 93 (A6) :5559-5567
[8]   A THEORY OF PATCHY AND INTERMITTENT RECONNECTIONS FOR MAGNETOSPHERIC FLUX-TRANSFER EVENTS [J].
KAN, JR .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1988, 93 (A6) :5613-5623
[9]  
KATSURAI M, 1986, 8TH P US JAP WORKSH, P13
[10]  
MCGUIRE K, 1987, PLASMA PHYS CONTROLL, V1, P421