Macroscopic stability of a supersonic plasma flow in a divergent magnetic mirror

Atsushi Imasaki, Fumitake Murakami, Kunihiko Hattori, Tsuyoshi Yagai, Masashi Ashino, Akira Ando, Hiroyuki Tobari, Mikirou Yoshinuma, Masaaki Inutake

研究成果: Conference article査読


Macroscopic behavior of a high-beta and supersonic plasma flow is investigated in the HITOP device. It is found that a cylindrical plasma begins to rotate eccentrically around the center axis in a divergent magnetic mirror. The eccentric radius increases with the increase in the mirror ratio and the beta value of the plasma. The rotating frequency changes with the radial electric field in the plasma, which is controlled by end-plate biasing technique. The rotation direction and its velocity are consistent with E × B drift motion. This behavior seems to be a flute/ballooning mode driven by static and dynamic pressure gradient in a bad curvature region of the divergent field line.

ジャーナルFusion Technology
1 T
出版ステータスPublished - 2001 1月
イベントInternational Conference on Open Magnetic Systems for Plasma Confinement - Tsukuba, Jpn
継続期間: 2000 7月 32000 7月 6

ASJC Scopus subject areas

  • 工学(全般)


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