Maximum-J capability in a quasiaxisymmetric stellarator

M. Yokoyama, K. Itoh, S. Okamura, K. Matsuoka, S. I. Itoh

Research output: Contribution to journalArticle

Abstract

Maximum-JJ is the second adiabatic invariant) capability, i.e., the radial derivative of J has the same sign as that of pressure, is investigated in a quasiaxisymmetric (QA) stellarator to investigate improved confinement. Due to the existence of nonaxisymmetry of the magnetic field strength, a local maximum of J is created to cause the drift reversal. External controllability of the maximum-J condition is also demonstrated, by which the impact of magnetic configuration on turbulent transport can be studied.

Original languageEnglish
Number of pages1
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume64
Issue number1
DOIs
Publication statusPublished - Jan 1 2001

Fingerprint

stellarators
Adiabatic Invariant
controllability
Reversal
Controllability
field strength
Magnetic Field
Derivative
Configuration
causes
configurations
magnetic fields

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Physics and Astronomy(all)

Cite this

Maximum-J capability in a quasiaxisymmetric stellarator. / Yokoyama, M.; Itoh, K.; Okamura, S.; Matsuoka, K.; Itoh, S. I.

In: Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 64, No. 1, 01.01.2001.

Research output: Contribution to journalArticle

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