Author/Authors :
Coad، نويسنده , , J.P. and Hole، نويسنده , , D.E. and Kolodinska، نويسنده , , E. and Likonen، نويسنده , , J. and Lindig، نويسنده , , S. and Matthews، نويسنده , , G.F. and Mayer، نويسنده , , M. and Philipps، نويسنده , , V. and Riccardo، نويسنده , , V. and Widdowson، نويسنده , , A.، نويسنده ,
Abstract :
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.
