Testing of tungsten coatings in JET for the ITER-like wall

J.P. Coad; D.E. Hole; E. Kolodinska; Jari Likonen; S. Lindig; G.F. Matthews; M. Mayer; V. Philipps; V. Riccardo; A. Widdowson; JET-EFDA contributors

doi:10.1016/j.jnucmat.2009.01.260

Testing of tungsten coatings in JET for the ITER-like wall

J.P. Coad^*, D.E. Hole, E. Kolodinska, Jari Likonen, S. Lindig, G.F. Matthews, M. Mayer, V. Philipps, V. Riccardo, A. Widdowson, JET-EFDA contributors

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

9 Citations (Scopus)

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.

Original language	English
Pages (from-to)	992-995
Journal	Journal of Nuclear Materials
Volume	390-391
DOIs	https://doi.org/10.1016/j.jnucmat.2009.01.260
Publication status	Published - 2009
MoE publication type	A1 Journal article-refereed
Event	18th International Conference on Plasma-Surface Interactions in Controlled Fusion Device - Toledo, Spain Duration: 26 May 2009 → 30 May 2009

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@article{457871bbeb654ffb8be7880e64017770,

title = "Testing of tungsten coatings in JET for the ITER-like wall",

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.",

author = "J.P. Coad and D.E. Hole and E. Kolodinska and Jari Likonen and S. Lindig and G.F. Matthews and M. Mayer and V. Philipps and V. Riccardo and A. Widdowson and \{JET-EFDA contributors\}",

year = "2009",

doi = "10.1016/j.jnucmat.2009.01.260",

language = "English",

volume = "390-391",

pages = "992--995",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

note = "18th International Conference on Plasma-Surface Interactions in Controlled Fusion Device ; Conference date: 26-05-2009 Through 30-05-2009",

}

TY - JOUR

T1 - Testing of tungsten coatings in JET for the ITER-like wall

AU - Coad, J.P.

AU - Hole, D.E.

AU - Kolodinska, E.

AU - Likonen, Jari

AU - Lindig, S.

AU - Matthews, G.F.

AU - Mayer, M.

AU - Philipps, V.

AU - Riccardo, V.

AU - Widdowson, A.

AU - JET-EFDA contributors

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

U2 - 10.1016/j.jnucmat.2009.01.260

DO - 10.1016/j.jnucmat.2009.01.260

M3 - Article

SN - 0022-3115

VL - 390-391

SP - 992

EP - 995

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

T2 - 18th International Conference on Plasma-Surface Interactions in Controlled Fusion Device

Y2 - 26 May 2009 through 30 May 2009

ER -

Testing of tungsten coatings in JET for the ITER-like wall

Abstract

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