Deposition probe measurements of impurities injected into a tokamak plasma
- 1 December 1985
- journal article
- Published by IOP Publishing in Nuclear Fusion
- Vol. 25 (12), 1745-1749
- https://doi.org/10.1088/0029-5515/25/12/004
Abstract
Impurity confinement behaviour has been studied by using a deposition probe in conjunction with pellet injection. Generally, an exponential decay of the impurity efflux and nearly symmetric ion/electron side toroidal flows have been observed. During phases of strong plasma disturbances, asymmetric flow is seen, indicative of edge transport and prompt recycling from local sources. The application of ECRH may cause such disturbances.Keywords
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