Externally driven magnetic field-line reconnection due to fast pulsed plasma current reversal in a Tokamak

Satoru Iizuka, Y. Minamitani, Tanaca Hiroshi Tanaca

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Magnetic field-line reconnection is experimentally achieved by quickly reversing the toroidal current in a Tokamak. The evolution of the reconnection depends on the initial plasma parameters. The reconnection occurs in a boundary region between the forward poloidal magnetic fields formed initially and the reversed poloidal magnetic fields generated by the reversed current. When an X-ray separatrix becomes apparent in the magnetic flux function, the local plasma pressure and electron temperature are sharply increased. The reconnection layer penetrates into the plasma core with a speed much slower than the Alfven speed but the reconnection is completed within a time shorter than the classical magnetic diffusion time.

Original languageEnglish
Article number003
Pages (from-to)973-988
Number of pages16
JournalPlasma Physics and Controlled Fusion
Volume28
Issue number7
DOIs
Publication statusPublished - 1986 Dec 1

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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