Measurements of beam-ion confinement during tangential beam-driven instabilities in a bean tokamak experiment
Open Access
- 1 June 1987
- journal article
- Published by AIP Publishing in Physics of Fluids
- Vol. 30 (6) , 1839-1852
- https://doi.org/10.1063/1.866199
Abstract
During tangential injection of neutral beams into low‐density tokamak plasmas with β>1%, instabilities are observed that degrade the confinement of beam ions. Neutron, charge‐exchange, and diamagnetic loop measurements are examined in order to identify the mechanism or mechanisms responsible for the beam‐ion transport. The data suggest a resonant interaction between the instabilities and the parallel energetic beam ions. Evidence for some nonresonant transport also exists.Keywords
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