Discharges with safety factor, q, <1 in a noncircular tokamak

T. H. Osborne, R. N. Dexter, S. C. Prager

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


Characteristics of plasmas in Tokapole II (a noncircular poloidal divertor tokamak) with directly measured q as low as 0.4 are discussed. This is a q regime bounded by well studied q>1 tokamaks and q0.1 reversed-field pinches. After q drops below 1, soft-x-ray sawtooth oscillations begin. During the oscillations the central q values remain stationary and below 1, while a small oscillation in the edge q values near q=1 is observed.

Original languageEnglish (US)
Pages (from-to)734-737
Number of pages4
JournalPhysical review letters
Issue number10
StatePublished - 1982

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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