Measurement of the Hall dynamo effect during magnetic reconnection in a high-temperature plasma |
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| Authors: | Ding W X Brower D L Craig D Deng B H Fiksel G Mirnov V Prager S C Sarff J S Svidzinski V |
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| Institution: | Electrical Engineering Department, University of California at Los Angeles, Los Angeles, California 90095, USA. |
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| Abstract: | 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. |
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