Measurement of the Hall dynamo effect during magnetic reconnection in a high-temperature plasma.

نویسندگان

  • W X Ding
  • D L Brower
  • D Craig
  • B H Deng
  • G Fiksel
  • V Mirnov
  • S C Prager
  • J S Sarff
  • V Svidzinski
چکیده

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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عنوان ژورنال:
  • Physical review letters

دوره 93 4  شماره 

صفحات  -

تاریخ انتشار 2004