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Abstract

The nature of the sawtooth collapse in tokamak plasmas has been a major puzzle since it was observed on the TEXTOR tokamak. The collapse occurs in two steps, a fast Kadomtsev-type reconnection followed by a rapid reformation of the central safety factor. The latter is driven by the strong flows generated during the Kadomtsev phase. The paper presents the dynamics of the two stage reconnection and shows it is a natural consequence of fast reconnection in high temperature tokamak plasmas.

Additional information

Authors: BISKAMP D, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);DRAKE J F, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Article: Physical Review Letters, Vol. 73 (1994) No. 7, pp. 971-974
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