Observation of a complex multistage transition in the JT-60U H-mode edge.
A complex multistage transition of the edge radial electric field is observed in JT-60U H-mode phase without edge localized mode. An interesting feature is that the poloidal rotation velocity of the carbon impurity ions changes in the later H-phase without a comparable change in the main ion pressure gradient, indicating a change in the parallel momentum (and particle) balance channel.
Kamiya
K
K
Japan Atomic Energy Agency, JAEA, Naka, Ibaraki-ken, 311-0193, Japan.
Ida
K
K
Sakamoto
Y
Y
Matsunaga
G
G
Kojima
A
A
Urano
H
H
Oyama
N
N
Koide
Y
Y
Kamada
Y
Y