TY - JOUR
T1 - Tripolar vortex in a plasma
AU - Okamoto, Atsushi
AU - Nagaoka, Kennichi
AU - Yoshimura, Shinji
AU - Vranješ, Jovo
AU - Kado, Shinichiro
AU - Kono, Mitsuo
AU - Tanaka, Masayoshi Y.
PY - 2005/4
Y1 - 2005/4
N2 - A tripolar vortex is spontaneously generated in a magnetized plasma. The flow velocity field of ions has been measured with a directional Langmuir probe, exhibiting the tripolar structure in vorticity distribution. The most remarkable feature of the tripolar vortex is that the polarity of rotation of each vortex is opposite to that of E × B drift. It is found that the charge-exchange process with inhomogeneous background neutrals produces an effective force, which dominates the electric field and drives the plasma into anti-E × B rotation.
AB - A tripolar vortex is spontaneously generated in a magnetized plasma. The flow velocity field of ions has been measured with a directional Langmuir probe, exhibiting the tripolar structure in vorticity distribution. The most remarkable feature of the tripolar vortex is that the polarity of rotation of each vortex is opposite to that of E × B drift. It is found that the charge-exchange process with inhomogeneous background neutrals produces an effective force, which dominates the electric field and drives the plasma into anti-E × B rotation.
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U2 - 10.1109/TPS.2005.845376
DO - 10.1109/TPS.2005.845376
M3 - Article
AN - SCOPUS:18844390239
VL - 33
SP - 452
EP - 453
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
SN - 0093-3813
IS - 2 I
ER -