Details

Autor(en) / Beteiligte

• Garofalo, A M
• Burrell, K H
• DeBoo, J C
• deGrassie, J S
• Jackson, G L
• Lanctot, M
• Reimerdes, H
• Schaffer, M J
• Solomon, W M
• Strait, E J

Titel

Observation of plasma rotation driven by static nonaxisymmetric magnetic fields in a tokamak

Ist Teil von

• Physical review letters, 2008-11, Vol.101 (19), p.195005-195005, Article 195005

Ort / Verlag

United States: American Physical Society (APS)

Erscheinungsjahr

2008

Quelle

PROLA

Beschreibungen/Notizen

• We present the first evidence for the existence of a neoclassical toroidal rotation driven in a direction counter to the plasma current by nonaxisymmetric, nonresonant magnetic fields. At high beta and with large injected neutral beam momentum, the nonresonant field torque slows down the plasma toward the neoclassical "offset" rotation rate. With small injected neutral beam momentum, the toroidal rotation is accelerated toward the offset rotation, with resulting improvement in the global energy confinement time. The observed magnitude, direction, and radial profile of the offset rotation are consistent with neoclassical theory predictions.