Surface analysis of tiles and samples exposed to the first JET campaigns with the ITER-like wall

J.P. Coad, E. Alves, N.P. Barradas, A. Baron-Wiechec, N. Catarino, K. Heinola, Jari Likonen, M. Mayer, G.F. Matthews, P: Petersson, A. Widdowson, JET-EFDA Contributors

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Abstract

This paper reports on the first post-mortem analyses of tiles removed from JET after the first campaigns with the ITER-like wall (ILW) during 2011-12 [1]. Tiles from the divertor have been analysed by ion beam analysis techniques and by secondary ion mass spectrometry to determine the amount of beryllium deposition and deuterium retention in the tiles exposed to the scrape-off layer. Films 10-20 µm thick were present at the top of tile 1, but only very thin films (<1 µm) were found in the shadowed areas and on other divertor tiles. The total amount of Be found in the divertor following the ILW campaign was a factor of ~ 9 less than the material deposited in the 2007-09 carbon campaign, after allowing for the longer operations in 2007-09.
Original languageEnglish
Number of pages5
JournalPhysica Scripta
Issue numberT159
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

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tiles
Tile
Mass Spectrometry
beryllium
secondary ion mass spectrometry
Thin Films
deuterium
Carbon
ion beams
carbon
thin films

Cite this

Coad, J. P., Alves, E., Barradas, N. P., Baron-Wiechec, A., Catarino, N., Heinola, K., ... Contributors, JET-EFDA. (2014). Surface analysis of tiles and samples exposed to the first JET campaigns with the ITER-like wall. Physica Scripta, (T159). https://doi.org/10.1088/0031-8949/2014/T159/014012
Coad, J.P. ; Alves, E. ; Barradas, N.P. ; Baron-Wiechec, A. ; Catarino, N. ; Heinola, K. ; Likonen, Jari ; Mayer, M. ; Matthews, G.F. ; Petersson, P: ; Widdowson, A. ; Contributors, JET-EFDA. / Surface analysis of tiles and samples exposed to the first JET campaigns with the ITER-like wall. In: Physica Scripta. 2014 ; No. T159.
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title = "Surface analysis of tiles and samples exposed to the first JET campaigns with the ITER-like wall",
abstract = "This paper reports on the first post-mortem analyses of tiles removed from JET after the first campaigns with the ITER-like wall (ILW) during 2011-12 [1]. Tiles from the divertor have been analysed by ion beam analysis techniques and by secondary ion mass spectrometry to determine the amount of beryllium deposition and deuterium retention in the tiles exposed to the scrape-off layer. Films 10-20 µm thick were present at the top of tile 1, but only very thin films (<1 µm) were found in the shadowed areas and on other divertor tiles. The total amount of Be found in the divertor following the ILW campaign was a factor of ~ 9 less than the material deposited in the 2007-09 carbon campaign, after allowing for the longer operations in 2007-09.",
author = "J.P. Coad and E. Alves and N.P. Barradas and A. Baron-Wiechec and N. Catarino and K. Heinola and Jari Likonen and M. Mayer and G.F. Matthews and P: Petersson and A. Widdowson and JET-EFDA Contributors",
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Coad, JP, Alves, E, Barradas, NP, Baron-Wiechec, A, Catarino, N, Heinola, K, Likonen, J, Mayer, M, Matthews, GF, Petersson, P, Widdowson, A & Contributors, JET-EFDA 2014, 'Surface analysis of tiles and samples exposed to the first JET campaigns with the ITER-like wall', Physica Scripta, no. T159. https://doi.org/10.1088/0031-8949/2014/T159/014012

Surface analysis of tiles and samples exposed to the first JET campaigns with the ITER-like wall. / Coad, J.P.; Alves, E.; Barradas, N.P.; Baron-Wiechec, A.; Catarino, N.; Heinola, K.; Likonen, Jari; Mayer, M.; Matthews, G.F.; Petersson, P:; Widdowson, A.; Contributors, JET-EFDA.

In: Physica Scripta, No. T159, 2014.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Surface analysis of tiles and samples exposed to the first JET campaigns with the ITER-like wall

AU - Coad, J.P.

AU - Alves, E.

AU - Barradas, N.P.

AU - Baron-Wiechec, A.

AU - Catarino, N.

AU - Heinola, K.

AU - Likonen, Jari

AU - Mayer, M.

AU - Matthews, G.F.

AU - Petersson, P:

AU - Widdowson, A.

AU - Contributors, JET-EFDA

N1 - Project code: 85724

PY - 2014

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N2 - This paper reports on the first post-mortem analyses of tiles removed from JET after the first campaigns with the ITER-like wall (ILW) during 2011-12 [1]. Tiles from the divertor have been analysed by ion beam analysis techniques and by secondary ion mass spectrometry to determine the amount of beryllium deposition and deuterium retention in the tiles exposed to the scrape-off layer. Films 10-20 µm thick were present at the top of tile 1, but only very thin films (<1 µm) were found in the shadowed areas and on other divertor tiles. The total amount of Be found in the divertor following the ILW campaign was a factor of ~ 9 less than the material deposited in the 2007-09 carbon campaign, after allowing for the longer operations in 2007-09.

AB - This paper reports on the first post-mortem analyses of tiles removed from JET after the first campaigns with the ITER-like wall (ILW) during 2011-12 [1]. Tiles from the divertor have been analysed by ion beam analysis techniques and by secondary ion mass spectrometry to determine the amount of beryllium deposition and deuterium retention in the tiles exposed to the scrape-off layer. Films 10-20 µm thick were present at the top of tile 1, but only very thin films (<1 µm) were found in the shadowed areas and on other divertor tiles. The total amount of Be found in the divertor following the ILW campaign was a factor of ~ 9 less than the material deposited in the 2007-09 carbon campaign, after allowing for the longer operations in 2007-09.

U2 - 10.1088/0031-8949/2014/T159/014012

DO - 10.1088/0031-8949/2014/T159/014012

M3 - Article

JO - Physica Scripta

JF - Physica Scripta

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