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Simulation calculat...
Simulation calculations of mutual contamination between tungsten and carbon and its impact on plasma surface interactions
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Ohya, K. (author)
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Kawakami, R. (author)
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Tanabe, T. (author)
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Wada, M. (author)
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Ohgo, T. (author)
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Philipps, V. (author)
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Pospieszczyk, A. (author)
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Huber, A. (author)
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- Rubel, Marek J. (author)
- KTH,Alfvénlaboratoriet
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Sergienko, G. (author)
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Noda, N. (author)
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(creator_code:org_t)
- 2001
- 2001
- English.
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In: Journal of Nuclear Materials. - 0022-3115 .- 1873-4820. ; 290, s. 303-307
- 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
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- Mutual contamination between C and W, resulting from the simultaneous use of these materials as plasma facing components, is simulated by means of a computer simulation code, Erosion and Deposition based on Dynamic model (EDDY). W deposition on C rapidly increases the reflection coefficient for D and C impurity. In comparison between the calculation and a C-W twin test limiter experiment in TEXTOR-94, C release from the C side of the limiter is dominated by reflection of C impurity from the W deposits, in addition to physical sputtering of C; chemical erosion is strongly suppressed. Due to the dynamic effect which makes C-W mixed layer, C deposition on W gradually changes the reflection coefficient and sputter yields. Formation of a sharp boundary between erosion and C deposition zones on the W side of the limiter is well reproduced by simulation. Local redeposition patterns of C and W on the limiter surface are also calculated.
Keyword
- plasma-material interaction
- tungsten
- carbon
- erosion
- deposition
- modelling
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Ohya, K.
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Kawakami, R.
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Tanabe, T.
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Wada, M.
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Ohgo, T.
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Philipps, V.
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show more...
-
Pospieszczyk, A.
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Huber, A.
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Rubel, Marek J.
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Sergienko, G.
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Noda, N.
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show less...
- Articles in the publication
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Journal of Nucle ...
- By the university
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Royal Institute of Technology