title: Observation of a complex multistage transition in the JT-60U H-mode edge.
abstract: 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.
authors.affiliation: Japan Atomic Energy Agency, JAEA, Naka, Ibaraki-ken, 311-0193, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kamiya
authors.forename: K
authors.initials: K
authors.lastname: Ida
authors.forename: Y
authors.initials: Y
authors.lastname: Sakamoto
authors.forename: G
authors.initials: G
authors.lastname: Matsunaga
authors.forename: A
authors.initials: A
authors.lastname: Kojima
authors.forename: H
authors.initials: H
authors.lastname: Urano
authors.forename: N
authors.initials: N
authors.lastname: Oyama
authors.forename: Y
authors.initials: Y
authors.lastname: Koide
authors.forename: Y
authors.initials: Y
authors.lastname: Kamada