Nonlinear convective heat transport in multiple magnetized electron temperature filaments

• Datum: 2017
• Hauptverfasser: Sydora, R.D., Van Compernolle, Karbashewski, S., Morales, G.J., Maggs, J.E.
• Format: Artikel
• Sprache: English
• Veröffentlicht: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2017
• Schriftenreihe: Вопросы атомной науки и техники
• Schlagworte: Динамика плазмы и взаимодействие плазма-стенка
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/122142
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Nonlinear convective heat transport in multiple magnetized electron temperature filaments / R.D. Sydora, B. Van Compernolle, S. Karbashewski, G.J. Morales, J.E. Maggs // Вопросы атомной науки и техники. — 2017. — № 1. — С. 100-103. — Бібліогр.: 16 назв. — англ.

Results are presented from a basic electron heat transport experiment consisting of multiple magnetized electron temperature filaments in close proximity. This arrangement samples cross-field transport from nonlinear drift-Alfven waves and is used to study elements of chaotic heat flow. Experiments are performed in the Large Plasma Device (LAPD) at the University of California. A biased LaB₆ cathode injects low energy electrons (below ionization energy) along a strong magnetic field into a pre-existing large and cold plasma forming an electron temperature filament embedded in a colder plasma, and far from the machine walls. A carbon masking plate with several holes is used to create 3 electron temperature filaments. Drift-Alfven and thermal waves from a single filament have been characterized and compared to previous studies with a different electron beam source. The 3-filament case exhibits a complex wave pattern and enhanced cross-field transport.