Phase space analysis for dynamics of three vortices of pure electron plasma trapped with Penning trap

Journal Article · Mon Jun 29 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4923111· OSTI ID:22490692

Sanpei, Akio ^[1]; Soga, Yukihiro ^[2]; Ito, Kiyokazu ^[3]; Himura, Haruhiko ^[4]

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1. Department of Electronics, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo Ward, Kyoto 606-8585 Japan (Japan)
2. Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192 Japan (Japan)
3. Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530 Japan (Japan)
4. Department of Electronics, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo Ward, Kyoto 606-8585 (Japan)

A trilinear phase space analysis is applied for dynamics of three electron clumps confined with a Penning-Malmberg trap. We show that the Aref’s concept of phase space describe the observed features of the dynamics of three point vortices qualitatively. In vacuum, phase point P moves to physical region boundary in phase space, i.e. triangular configuration cannot be kept. With the addition of a low level background vorticity distribution (BGVD), the excursion of the clumps is reduced and the distance between P and stable point does not extend in the phase space.

• OSTI ID: 22490692
• Journal Information: AIP Conference Proceedings, Vol. 1668, Issue 1; Conference: 11. international workshop on non-neutral plasmas, Takamatsu (Japan), 1-4 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRONS
PHASE SPACE
PLASMA
PLASMA CONFINEMENT
TRAPPING
TRAPS
TRIANGULAR CONFIGURATION
VORTICES