Measurement of the Hall dynamo effect during magnetic reconnection in a high-temperature plasma.
The fluctuation-induced Hall electromotive force, [deltaJ x deltaB]/nee, is experimentally measured in the high-temperature interior of a reversed-field pinch plasma by a fast Faraday rotation diagnostic. It is found that the Hall dynamo effect is significant, redistributing (flattening) the equilibrium core current near the resonant surface during a reconnection event. These results imply that effects beyond single-fluid MHD are important for the dynamo and magnetic reconnection.
Ding
W X
WX
Electrical Engineering Department, University of California at Los Angeles, Los Angeles, California 90095, USA.
Brower
D L
DL
Craig
D
D
Deng
B H
BH
Fiksel
G
G
Mirnov
V
V
Prager
S C
SC
Sarff
J S
JS
Svidzinski
V
V