Edge poloidal rotation profiles of H-mode plasmas in the JFT-2M tokamak
- National Institute for Fusion Science, Nagoya, 464-01 (Japan)
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki, 319-11 (Japan)
Parameter dependence of the radial structure of edge poloidal rotation is studied with spectroscopic measurements for L- and H-mode plasmas in the JFT-2M tokamak (Y. Miura {ital et} {ital al}., in {ital Plasma} {ital Physics} {ital and} {ital Controlled} {ital Nuclear} {ital Fusion} {ital Research}, Proceedings of the 13th International Conference, Washington 1990 (IAEA, Vienna, 1991), Vol. 1, p. 325). The poloidal flow is in the electron diamagnetic direction and appears suddenly near the plasma edge at the H-mode transition. The poloidal rotation velocity profile in the H mode has a peak at the separatrix. No critical normalized ion collisionality, {nu}{sub *{ital i}}, for the transition of the L to the H mode is observed. The size of the poloidal flow in the H mode has no dependence on the poloidal gyroradius.
- OSTI ID:
- 7182498
- Journal Information:
- Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 4:8; ISSN 0899-8221; ISSN PFBPE
- Country of Publication:
- United States
- Language:
- English
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