Micro-tearing stability in Tokamaks

J. W. Connor, S. C. Cowley, R. J. Hastie

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


The resonant layer equations governing tearing and micro-tearing modes in toroidal geometry are formulated and solved for a plasma in the banana regime and for wavelengths in the intermediate collisionality range nu e< omega *e< nu e/ epsilon . It is shown that stability of such tearing modes is determined by a competition between destabilizing trapped electron dissipation and stabilizing effects arising from ion magnetization and collisional broadening of the passing-electron Landau resonance. Analytic stability criteria are derived, but for realistic parameters these modes are predicted to be stable.

Original languageEnglish (US)
Article number004
Pages (from-to)799-817
Number of pages19
JournalPlasma Physics and Controlled Fusion
Issue number10
StatePublished - 1990
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics


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