q measurements during sawtooth oscillations in a low q tokamak

R. A. Moyer, J. A. Goetz, R. N. Dexter, S. C. Prager

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

The central safety factor during a sawtooth oscillation in material limiter tokamak discharges (scrapeoff plates inserted to the separatrix) in the TOKAPOLE II poloidal divertor tokamak [Phys. Rev. Lett. 49, 734 (1982)] is measured to be significantly less than 1 (approximately 0.7) during a sawtooth oscillation. This result is identical to that observed earlier in the same device in magnetic limiter discharges. Thus the presence of scrapeoff plasma beyond the divertor separatrix is not responsible for the absence of total reconnection.

Original languageEnglish (US)
Pages (from-to)2139-2141
Number of pages3
JournalPhysics of Fluids B
Volume1
Issue number11
DOIs
StatePublished - 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

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