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Modelling of carbon...
Modelling of carbon migration during JET C-13 injection experiments
- Article/chapterEnglish2008
Publisher, publication year, extent ...
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2008-08-28
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IOP Publishing,2008
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-17932
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-17932URI
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https://doi.org/10.1088/0029-5515/48/10/105002DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20100525
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JET has performed two dedicated carbon migration experiments on the final run day of separate campaigns ( 2001 and 2004) using (CH4)-C-13 methane injected into repeated discharges. The EDGE2D/NIMBUS code modelled the carbon migration in both experiments. This paper describes this modelling and identifies a number of important migration pathways: ( 1) deposition and erosion near the injection location, ( 2) migration through the main chamber SOL, (3) migration through the private flux region (PFR) aided by E x B drifts and ( 4) neutral migration originating near the strike points. In H-Mode, type I ELMs are calculated to influence the migration by enhancing erosion during the ELM peak and increasing the long-range migration immediately following the ELM. The erosion/re-deposition cycle along the outer target leads to a multistep migration of C-13 towards the separatrix which is called 'walking'. This walking created carbon neutrals at the outer strike point and led to 13C deposition in the PFR. Although several migration pathways have been identified, quantitative analyses are hindered by experimental uncertainty in divertor leakage, and the lack of measurements at locations such as gaps and shadowed regions.
Subject headings and genre
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scrape-off layer
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diii-d
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fusion devices
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divertor plasmas
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material
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erosion
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inner divertor
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fuel inventory
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target plates
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asdex upgrade
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deposition
Added entries (persons, corporate bodies, meetings, titles ...)
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Likonen, J.
(author)
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Coad, P.
(author)
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Rubel, Marek J.KTH,Fusionsplasmafysik(Swepub:kth)u1vrej8y
(author)
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Widdowson, A.
(author)
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Airila, M.
(author)
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Andrew, P.
(author)
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Brezinsek, S.
(author)
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Corrigan, G.
(author)
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Esser, H. G.
(author)
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Jachmich, S.
(author)
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Kallenbach, A.
(author)
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Kirschner, A.
(author)
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Kreter, A.
(author)
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Matthews, G. F.
(author)
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Philipps, V.
(author)
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Pitts, R. A.
(author)
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Spence, J.
(author)
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Stamp, M.
(author)
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Wiesen, S.
(author)
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KTHFusionsplasmafysik
(creator_code:org_t)
Related titles
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In:Nuclear Fusion: IOP Publishing48:100029-55151741-4326
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- By the author/editor
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Strachan, J. D.
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Likonen, J.
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Coad, P.
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Rubel, Marek J.
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Widdowson, A.
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Airila, M.
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show more...
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Andrew, P.
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Brezinsek, S.
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Corrigan, G.
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Esser, H. G.
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Jachmich, S.
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Kallenbach, A.
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Kirschner, A.
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Kreter, A.
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Matthews, G. F.
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Philipps, V.
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Pitts, R. A.
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Spence, J.
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Stamp, M.
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Wiesen, S.
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show less...
- Articles in the publication
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Nuclear Fusion
- By the university
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Royal Institute of Technology