Inductive sustainment of oblate field-reversed configurations with the assistance of magnetic diffusion, shaping, and finite-Larmor radius stabilization

S. P. Gerhardt, E. V. Belova, M. Yamada, H. Ji, M. Inomoto, C. M. Jacobson, R. Maqueda, B. McGeehan, Y. Ren

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Oblate field-reversed configurations (FRCs) have been sustained for >300 μs, or >15 magnetic diffusion times, through the use of an inductive solenoid. These argon FRCs can have their poloidal flux sustained or increased, depending on the timing and strength of the induction. An inward pinch is observed during sustainment, leading to a peaking of the pressure profile and maintenance of the FRC equilibrium. The good stability observed in argon (and krypton) does not transfer to lighter gases, which develop terminal co-interchange instabilities. The stability in argon and krypton is attributed to a combination of external field shaping, magnetic diffusion, and finite-Larmor radius effects.

Original languageEnglish (US)
Article number022503
JournalPhysics of Plasmas
Volume15
Issue number2
DOIs
StatePublished - 2008

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Inductive sustainment of oblate field-reversed configurations with the assistance of magnetic diffusion, shaping, and finite-Larmor radius stabilization'. Together they form a unique fingerprint.

Cite this