A high performance field-reversed configurationa)
2015; American Institute of Physics; Volume: 22; Issue: 5 Linguagem: Inglês
10.1063/1.4920950
ISSN1527-2419
AutoresMichl Binderbauer, T. Tajima, L. C. Steinhauer, E. Garate, M. Tuszewski, L. Schmitz, Heng Guo, A. Smirnov, H. Gota, D. C. Barnes, B. H. Deng, M. C. Thompson, E. Trask, Xiaokang Yang, S. Putvinski, N. Rostoker, R. Andow, S. Aefsky, N. Bolte, D. Q. Bui, F. Ceccherini, R. Clary, A. H. Cheung, K. D. Conroy, Sean Dettrick, J. D. Douglass, P. Feng, Laura Galeotti, F. Giammanco, E. Granstedt, D. Gupta, S. Gupta, А. А. Иванов, John Kinley, K. Knapp, S. Korepanov, Mark Hollins, Richard Magee, R. Mendoza, Y. Mok, A. Nečas, S. Primavera, M. Onofri, D. Osin, N. Rath, T. Roche, J. Roméro, J. H. Schroeder, L. Sevier, A. Sibley, Y. Song, A. D. Van Drie, James K. Walters, W. Waggoner, P. Yushmanov, K. Zhai,
Tópico(s)Fusion materials and technologies
ResumoConventional field-reversed configurations (FRCs), high-beta, prolate compact toroids embedded in poloidal magnetic fields, face notable stability and confinement concerns. These can be ameliorated by various control techniques, such as introducing a significant fast ion population. Indeed, adding neutral beam injection into the FRC over the past half-decade has contributed to striking improvements in confinement and stability. Further, the addition of electrically biased plasma guns at the ends, magnetic end plugs, and advanced surface conditioning led to dramatic reductions in turbulence-driven losses and greatly improved stability. Together, these enabled the build-up of a well-confined and dominant fast-ion population. Under such conditions, highly reproducible, macroscopically stable hot FRCs (with total plasma temperature of ∼1 keV) with record lifetimes were achieved. These accomplishments point to the prospect of advanced, beam-driven FRCs as an intriguing path toward fusion reactors. This paper reviews key results and presents context for further interpretation.
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