Inductive Sustainment of Oblate FRCs with the Assistance of Magnetic Diffusion, Shaping and Finite-Lamor Radius Stabilization

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

关键词: ARGON;    DIFFUSION;    FIELD-REVERSED THETA PINCH DEVICES;    GASES;    INDUCTION;    KRYPTON;    MAINTENANCE;    STABILITY;    STABILIZATION;   

DOI  :  10.2172/953702
RP-ID  :  PPPL-4337
PID  :  OSTI ID: 953702
Others  :  TRN: US1000191

学科分类：原子、分子光学和等离子物理

美国|英语

来源: SciTech Connect

【 摘 要 】

Oblate field-reversed configurations FRCs have been sustained for >300 Âľs, 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.