Dynamic behaviour of the low-to-high confinement transitions in the H-1 heliac

D. L. Rudakov, M. G. Shats, J. H. Harris, B. D. Blackwell

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The dynamic behaviour of the plasma parameters, including the local electron density, electron temperature, plasma potential and their radial gradients, is studied experimentally during the transitions between low and high confinement modes (L-H transitions) in the H-1 heliac. In particular, a dynamic phenomenon occurring near the threshold conditions for the L-H transition and manifesting itself as a quasi-periodic low-frequency modulation of the local and average plasma parameters is described and discussed. A simple qualitative model for this phenomenon, referred to as L-H cycles, is suggested.

Original languageEnglish
Pages (from-to)559-570
Number of pages12
JournalPlasma Physics and Controlled Fusion
Volume43
Issue number4
DOIs
StatePublished - Apr 2001
Externally publishedYes

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