Vortex Formation in a Plasma Interacting with Neutral Flow

Journal Article · Wed Oct 15 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3013783· OSTI ID:21251531

Tanaka, M Y; Ogiwara, K; Etoh, S ^[1]; Aramaki, M ^[2]; Yoshimura, S ^[3]; Varanjes, J ^[4]

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1. Department of High Energy Engineering Science, Kyushu University, Kasuga-koen 6-1, Kasuga 816-8580 (Japan)
2. Department of Electrical Engineering, Nagoya University, Chikusa, Nagoya 464-8603 (Japan)
3. National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292 (Japan)
4. Center for Plasma Astrophysics, Celestijnenlaan 200 B 3001 Leuven (Belgium)

Recently, it has been observed that there exists a class of vortices which rotates in the opposite direction to ExB drift (referred to as anti-ExB vortex). This result suggests that a predominant force other than electric field is acting on ions. It is found that momentum transport and resultant force generation through the interaction between ions and neutral flow play an essential role on anti-ExB vortex formation. The existence of inward neutral flow, which drives the ions in the anti-ExB direction, has been confirmed using a newly-developed high-resolution laser induced fluorescence (LIF) spectroscopy system.

• OSTI ID: 21251531
• Journal Information: AIP Conference Proceedings, Vol. 1061, Issue 1; Conference: 2008 ICTP international workshop on the frontiers of modern plasma physics, Trieste (Italy), 14-25 Jul 2008; Other Information: DOI: 10.1063/1.3013783; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRIC FIELDS
ELECTROMAGNETIC FIELDS
FLUORESCENCE
IONS
LASERS
PLASMA
RESOLUTION
SPECTROSCOPY