Current-diffusive ballooning mode in low shear and negative shear regions of tokamaks

Masatoshi Yagi, Kimitaka Itoh, Sanae Itoh, Atsushi Fukuyama, Masafumi Azumi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The stability of the current-diffusive ballooning mode in tokamaks with high toroidal mode number is analyzed in the region of second stability against the ideal magnetohydrodynamic mode. It is found that the growth rate of the current-diffusive ballooning mode is decreased upon the reduction of the geodesic curvature driving force. The reduction of thermal conductivity in the limit of very weak shear or negative shear in comparision with standard shear is also shown.

Original languageEnglish
Pages (from-to)10-13
Number of pages4
JournalJournal of the Physical Society of Japan
Volume63
Issue number1
DOIs
Publication statusPublished - Jan 1 1994

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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