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  Studies of ELM Heat Load, SOL Flow and Carbon Erosion from Existing Tokamak Experiments, and their Predictions to ITER

Asakura, N., Loarte, A., Porter, G., Philipps, V., Lipschultz, B., Kallenbach, A., et al. (2003). Studies of ELM Heat Load, SOL Flow and Carbon Erosion from Existing Tokamak Experiments, and their Predictions to ITER. In Fusion Energy 2002. Vienna: International Atomic Energy Agency.

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 Creators:
Asakura, N.1, Author
Loarte, A.1, Author
Porter, G.1, Author
Philipps, V.1, Author
Lipschultz, B.1, Author
Kallenbach, A.2, Author              
Matthews, G.1, Author
Federici, G.1, Author
Kukushkin, A.3, Author              
Mahdavi, A.1, Author
Leonard, A. W.1, Author
Whyte, D.1, Author
Itami, K.1, Author
Takenaga, H.1, Author
Chankin, A. V.4, Author              
Higashijima, S.5, Author              
Nakano, T.1, Author
Herrmann, A.6, Author              
Eich, T.6, Author              
LaBombard, B.1, Author
Affiliations:
1Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki, Japan; EFDA CSU, Max-Planck-Institut für Plasmaphysik, Garching bei München, Germany; Lawrence Livermore National Laboratory, Livermore, USA; Forschungszentrum Jülich, IPP, EURATOM-Association, Jülich, Germany; MIT Plasma Science and Fusion Center, Cambridge, USA; Joint European Torus, Abingdon, Oxon, United Kingdom; ITER International Team, Max-Planck-Institut für Plasmaphysik, Garching bei München, Germany; General Atomics, San Diego, USA; University of California at San Diego, San Diego, USA, ou_persistent22              
2Experimental Plasma Physics 4 (E4), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856293              
3Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856328              
4Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856309              
5External Organizations, ou_persistent22              
6Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856295              

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 Abstract: Three important physics issues for the ITER divertor design and operation are summarized based on the experimental and numerical work from multi-machine database (JET, JT-60U, ASDEX Upgrade, DIII-D, Alcator C-Mod and TEXTOR). (i) The energy load associated with Type-I ELMs is of great concern for the lifetime of the ITER divertor target. In order to understand the physics base of the scaling models[1], the ELM heat and particle transport from the edge pedestal to the divertor is investigated. Convective transport during ELMs plays an important role in heat transport to the divertor. (ii) Determination of the SOL flow pattern and the driving mechanism has progressed experimentally and numerically. Influences of the drift effects on the SOL and divertor plasma transport were discussed. (iii) Carbon erosion and redeposition are of great importance in particular for tritium retention via codeposition. Characteristics of chemical yield at two different deposited carbon surfaces, i.e. erosion- and redeposition-dominated areas, have been studied. Progress in the understanding of the chemical erosion is reviewed.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: Internal
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Title: 19th Fusion Energy Conference
Place of Event: Lyon (FR)
Start-/End Date: 2002-10-14 - 2002-10-19

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Title: Fusion Energy 2002
Source Genre: Proceedings
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Publ. Info: Vienna : International Atomic Energy Agency
Pages: CD-ROM Volume / Issue: - Sequence Number: CT/P-01 Start / End Page: - Identifier: -