Observation of a Complex Multistage Transition in the JT-60U H-mode Edge

Journal Article · Fri Jul 23 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.045004· OSTI ID:21410939

Kamiya, K; Sakamoto, Y; Matsunaga, G; Kojima, A; Urano, H; Oyama, N; Koide, Y; Kamada, Y ^[1]; Ida, K ^[2]

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1. Japan Atomic Energy Agency, JAEA, Naka, Ibaraki-ken, 311-0193 (Japan)
2. National Institute for Fusion Science, NIFS, Toki, Gifu 509-5292 (Japan)

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.

• OSTI ID: 21410939
• Journal Information: Physical Review Letters, Vol. 105, Issue 4; Other Information: DOI: 10.1103/PhysRevLett.105.045004; (c) 2010 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CARBON
EDGE LOCALIZED MODES
ELECTRIC FIELDS
H-MODE PLASMA CONFINEMENT
IONS
JT-60U TOKAMAK
PLASMA IMPURITIES
PRESSURE GRADIENTS
ROTATION
CHARGED PARTICLES
CLOSED PLASMA DEVICES
CONFINEMENT
ELEMENTS
IMPURITIES
INSTABILITY
MAGNETIC CONFINEMENT
MOTION
NONMETALS
PLASMA CONFINEMENT
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES