Carbon transport in the stochastic magnetic boundary of TEXTOR
Author | |
Abstract |
For given conditions, significant change in main particle and carbon transport is observed in TEXTOR under the action of the Dynamic Ergodic Divertor, DED, operating both in 6/2 and 3/1 basic modes. In particular, the stochastic layer created at the plasma edge by the applied perturbing field, is responsible for the so called pump out, PO, effect (observed in DIII-D and on JET during experiments of ELM mitigation) characterized by a decrease in the plasma density and the reduction in the intrinsic carbon concentration in the plasma core. For a sufficiently high value of the applied field strength, in DED 3/1 basic operational mode a 3/1 island connects to the wall, with related further enhancement of particle transport. With respect to carbon, this phenomenon simply leads to a further carbon de-contamination from the central plasma. (C) 2009 Elsevier B.V. All rights reserved. |
Year of Conference |
2009
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Number of Pages |
227-231
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Publisher |
Elsevier Science Bv
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Accession Number |
ISI:000267747300053
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URL |
<Go to ISI>://000267747300053
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PId |
166f1acb7f79129dd185f0873066d048
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Conference Proceedings
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