A CFC tile 5 from the JET outer divertor, and CFC tiles from neutral beam shine-through and re-ionisation regions were coated with tungsten and exposed during the 2005-7 JET campaigns in preparation for the ITER-like wall project. Approximately 1.6 microns of coating were eroded from the tile 5 during high-delta discharges when the outer strike-point is on the tile. The coatings on the other tiles were unaffected by NB-heating and divertor discharges, however a tile mounted near the centre of the Inner Wall Guard Limiter lost all its coating from the surface within 10 mm of the tile leading edge; this probably occurred during the ramp-up phase of JET discharges.
|Number of pages||4|
|Journal||Journal of Nuclear Materials|
|Publication status||Published - 2009|
|MoE publication type||A1 Journal article-refereed|
|Event||18th International Conference on Plasma-Surface Interactions in Controlled Fusion Device, 26-30 May 2008, Toledo, Spain - |
Duration: 1 Jan 2009 → …