Advanced search
1 file | 299.45 KB

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

Author
Organization
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

Downloads

  • JET C13 PFMC12 final.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 299.45 KB

Citation

Please use this url to cite or link to this publication:

Chicago
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.
APA
Airila, M., Aho-Mantila, L., Brezinsek, S., Coad, J., Kirschner, A., Likonen, J., Matveev, D., et al. (2009). ERO modelling of local deposition of injected C-13 tracer at the outer divertor of JET. PHYSICA SCRIPTA, T138. Presented at the 12th International workshop on Plasma-Facing Materials and Components for Fusion Applications (PMFC-12).
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.
MLA
Airila, MI et al. “ERO Modelling of Local Deposition of Injected C-13 Tracer at the Outer Divertor of JET.” PHYSICA SCRIPTA T138 (2009): n. pag. Print.
@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://dx.doi.org/10.1088/0031-8949/2009/T138/014021},
  volume       = {T138},
  year         = {2009},
}

Altmetric
View in Altmetric
Web of Science
Times cited: