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ERO modelling of lo...
ERO modelling of local deposition of injected C-13 tracer at the outer divertor of JET
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Airila, M. I. (author)
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Aho-Mantila, L. (author)
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Brezinsek, S. (author)
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Coad, J. P. (author)
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Kirschner, A. (author)
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Likonen, J. (author)
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Matveev, D. (author)
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- Rubel, Marek (author)
- KTH,Alfvénlaboratoriet,Fusionsplasmafysik
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Strachan, J. D. (author)
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Widdowson, A. (author)
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Wiesen, S. (author)
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(creator_code:org_t)
- 2009
- 2009
- English.
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In: Physica Scripta. - 0031-8949 .- 1402-4896. ; T138, s. 014021-
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The 2004 tracer experiment of JET with the injection of (CH4)-C-13 into H-mode plasma at the outer divertor has been modelled with the Monte Carlo impurity transport code ERO. EDGE2D solutions for inter-ELM and ELM-peak phases were used as plasma backgrounds. Local two-dimensional (2D) deposition patterns at the vertical outer divertor target plate were obtained for comparison with post-mortem surface analyses. ERO also provides emission profiles for comparison with radially resolved spectroscopic measurements. Modelling indicates that enhanced re-erosion of deposited carbon layers is essential in explaining the amount of local deposition. Assuming negligible effective sticking of hydrocarbons, the measured local deposition of 20-34% is reproduced if re-erosion of deposits is enhanced by a factor of 2.5-7 compared to graphite erosion. If deposits are treated like the substrate, the modelled deposition is 55%. Deposition measurements at the shadowed area around injectors can be well explained by assuming negligible re-erosion but similar sticking behaviour there as on plasma-wetted surfaces.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- SCRAPE-OFF LAYER
- TRANSPORT
- EROSION
- CARBON
- Plasma physics with fusion
- Plasmafysik med fusion
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Airila, M. I.
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Aho-Mantila, L.
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Brezinsek, S.
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Coad, J. P.
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Kirschner, A.
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Likonen, J.
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show more...
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Matveev, D.
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Rubel, Marek
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Strachan, J. D.
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Widdowson, A.
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Wiesen, S.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
- Articles in the publication
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Physica Scripta
- By the university
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Royal Institute of Technology