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ERO modelling of local deposition of injected C-13 tracer at the outer divertor of JET

MI Airila, L Aho-Mantila, S Brezinsek, JP Coad, A Kirschner, J Likonen, Dmitry Matveev (UGent) , M Rubel, JD Strachan, A Widdowson, et al.
(2009) PHYSICA SCRIPTA. T138.
Author
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Abstract
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.
Keywords
CARBON, EROSION, TRANSPORT, SCRAPE-OFF LAYER

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MLA
Airila, MI, et al. “ERO Modelling of Local Deposition of Injected C-13 Tracer at the Outer Divertor of JET.” PHYSICA SCRIPTA, vol. T138, 2009, doi:10.1088/0031-8949/2009/T138/014021.
APA
Airila, M., Aho-Mantila, L., Brezinsek, S., Coad, J., Kirschner, A., Likonen, J., … Wiesen, S. (2009). ERO modelling of local deposition of injected C-13 tracer at the outer divertor of JET. PHYSICA SCRIPTA, T138. https://doi.org/10.1088/0031-8949/2009/T138/014021
Chicago author-date
Airila, MI, L Aho-Mantila, S Brezinsek, JP Coad, A Kirschner, J Likonen, Dmitry Matveev, et al. 2009. “ERO Modelling of Local Deposition of Injected C-13 Tracer at the Outer Divertor of JET.” PHYSICA SCRIPTA T138. https://doi.org/10.1088/0031-8949/2009/T138/014021.
Chicago author-date (all authors)
Airila, MI, L Aho-Mantila, S Brezinsek, JP Coad, A Kirschner, J Likonen, Dmitry Matveev, M Rubel, JD Strachan, A Widdowson, and S Wiesen. 2009. “ERO Modelling of Local Deposition of Injected C-13 Tracer at the Outer Divertor of JET.” PHYSICA SCRIPTA T138. doi:10.1088/0031-8949/2009/T138/014021.
Vancouver
1.
Airila M, Aho-Mantila L, Brezinsek S, Coad J, Kirschner A, Likonen J, et al. ERO modelling of local deposition of injected C-13 tracer at the outer divertor of JET. PHYSICA SCRIPTA. 2009;T138.
IEEE
[1]
M. Airila et al., “ERO modelling of local deposition of injected C-13 tracer at the outer divertor of JET,” PHYSICA SCRIPTA, vol. T138, 2009.
@article{1242999,
  abstract     = {{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.}},
  articleno    = {{014021}},
  author       = {{Airila, MI and Aho-Mantila, L and Brezinsek, S and Coad, JP and Kirschner, A and Likonen, J and Matveev, Dmitry and Rubel, M and Strachan, JD and Widdowson, A and Wiesen, S}},
  issn         = {{0031-8949}},
  journal      = {{PHYSICA SCRIPTA}},
  keywords     = {{CARBON,EROSION,TRANSPORT,SCRAPE-OFF LAYER}},
  language     = {{eng}},
  location     = {{Jülich, Germany}},
  pages        = {{5}},
  title        = {{ERO modelling of local deposition of injected C-13 tracer at the outer divertor of JET}},
  url          = {{http://doi.org/10.1088/0031-8949/2009/T138/014021}},
  volume       = {{T138}},
  year         = {{2009}},
}
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