TY - JOUR
T1 - Macroscopic stability of a supersonic plasma flow in a divergent magnetic mirror
AU - Imasaki, Atsushi
AU - Murakami, Fumitake
AU - Hattori, Kunihiko
AU - Yagai, Tsuyoshi
AU - Ashino, Masashi
AU - Ando, Akira
AU - Tobari, Hiroyuki
AU - Yoshinuma, Mikirou
AU - Inutake, Masaaki
PY - 2001/1
Y1 - 2001/1
N2 - 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.
AB - 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.
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U2 - 10.13182/fst01-a11963471
DO - 10.13182/fst01-a11963471
M3 - Conference article
AN - SCOPUS:0035083035
VL - 39
SP - 324
EP - 327
JO - Fusion Science and Technology
JF - Fusion Science and Technology
SN - 1536-1055
IS - 1 T
T2 - International Conference on Open Magnetic Systems for Plasma Confinement
Y2 - 3 July 2000 through 6 July 2000
ER -