Measurement of plasma rotation velocities with electrode biasing in the Saskatchewan Torus-Modified (STOR-M) tokamak

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870626· OSTI ID:6641397

Xiao, C; Jain, K K; Zhang, W; Hirose, A ^[1]

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1. Plasma Physics Laboratory, Department of Physics Engineering Physics, University of Saskatchewan, Saskatoon, Saskatchewan S7N 0W0 (Canada)

In the Saskatchewan Torus-Modified (STOR-M) tokamak [Phys. Fluids B [bold 4], 3277 (1992)], application of a negative bias results in large negative radial electric field, [ital E][sub [ital r]], at the plasma edge, reduced plasma toroidal rotation velocity, and a large poloidal rotation in the electron diamagnetic drift direction. Conversely, a positive bias leads to a relatively small negative [ital E][sub [ital r]] at the plasma edge, a positive [ital E][sub [ital r]] in the scrape-off layer, increased toroidal rotation, and an increased poloidal rotation speed in the ion diamagnetic drift direction. Increases in edge plasma density and steepening of its radial profile have also been observed for both polarities.

• OSTI ID: 6641397
• Journal Information: Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:7; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700310 -- Plasma Confinement-- (1992-)
700330* -- Plasma Kinetics
Transport
& Impurities-- (1992-)
CLOSED PLASMA DEVICES
CONFINEMENT
ELECTRIC FIELDS
ELECTRODES
ELECTRON DRIFT
ION DRIFT
LIMITERS
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
ROTATING PLASMA
THERMONUCLEAR DEVICES
TOKAMAK DEVICES