Double hysteresis in L/H transition and compound dithers

S. Toda, S. I. Itoh, M. Yagi, A. Fukuyama, K. Itoh

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

To study L/H transition physics, the hysteresis, generated by the ambipolar condition, is examined. Three mechanisms for the bipolar losses, i.e. the loss cone loss, collisional bulk viscosity loss of ions, and the anomalous loss, are simultaneously retained, and the competition between them is investigated. It is found that fivefold multiple branches exist in the gradient-flux relation, when the effective ion collision frequency is close to unity. Multiple bifurcations in the hysteresis curve appear. The new type of the limit cycle oscillation, compound dither, is predicted to occur.

Original languageEnglish
Pages (from-to)1337-1341
Number of pages5
JournalPlasma Physics and Controlled Fusion
Volume38
Issue number8
DOIs
Publication statusPublished - Dec 1 1996

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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