@article{7748,
  author = {M. Groth and S. Brezinsek and P. Belo and G. Corrigan and D. Harting and S. Wiesen and M. N. A. Beurskens and M. Brix and M. Clever and J. W. Coenen and T. Eich and J. Flanagan and C. Giroud and A. Huber and S. Jachmich and U. Kruezi and M. Lehnen and C. Lowry and C. F. Maggi and S. Marsen and A. G. Meigs and G. Sergienko and B. Sieglin and C. Silva and A. Sirinelli and M. F. Stamp and G. J. van Rooij},
  title = {Target particle and heat loads in low-triangularity L-mode plasmas in JET with carbon and beryllium/tungsten walls},
  abstract = {Divertor radiation profiles, and power and particle fluxes to the target have been measured in attached \{JET\} L-mode plasmas with carbon and beryllium/tungsten wall materials. In the beryllium/tungsten configuration, factors of 2–3 higher power loads and peak temperatures at the low field side target were observed in high-recycling scrape-off layer conditions, whilst in close-to-sheath-limited conditions almost identical plasmas were obtained. The 30% reduction in total radiation with the beryllium/tungsten wall is consistent with a reduction of carbon as the dominant impurity radiator; however similar ion current to the plates, emission from recycling neutrals and neutral pressures in the pumping plenum were measured. Simulations with the EDGDE2/EIRENE code of these plasmas indicate a reduction of the total divertor radiation when carbon is omitted, but significantly higher power loads in high-recycling and detached conditions are predicted than measured.},
  year = {2013},
  journal = {Journal of Nuclear Materials},
  volume = {438, Supplement},
  pages = {S175 - S179},
  url = {http://www.sciencedirect.com/science/article/pii/S0022311513000809},
  doi = {http://dx.doi.org/10.1016/j.jnucmat.2013.01.072},
  note = {Proceedings of the 20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices},
  language = {eng},
}