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; J. Likonen; M. Mayer; G. F. Matthews; P. Petersson; A. Widdowson

doi:10.1088/0031-8949/2014/T159/014012

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, J. Likonen, M. Mayer, G. F. Matthews, P. Petersson, A. Widdowson

Research output: Contribution to journal › Conference article › peer-review

43 Scopus citations

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 language	English
Article number	014012
Journal	Physica Scripta
Volume	T159
DOIs	https://doi.org/10.1088/0031-8949/2014/T159/014012
State	Published - 2014
Externally published	Yes
Event	14th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2013 - Julich, Germany Duration: 13 May 2013 → 17 May 2013

Keywords

beryllium
divertor materials
plasma-materials interaction
re-deposition

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10.1088/0031-8949/2014/T159/014012

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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.",

keywords = "beryllium, divertor materials, plasma-materials interaction, re-deposition",

author = "Coad, {J. P.} and E. Alves and Barradas, {N. P.} and A. Baron-Wiechec and N. Catarino and K. Heinola and J. Likonen and M. Mayer and Matthews, {G. F.} and P. Petersson and A. Widdowson",

year = "2014",

doi = "10.1088/0031-8949/2014/T159/014012",

language = "英语",

volume = "T159",

journal = "Physica Scripta",

issn = "0281-1847",

publisher = "IOP Publishing Ltd.",

note = "14th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2013 ; Conference date: 13-05-2013 Through 17-05-2013",

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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, J.

AU - Mayer, M.

AU - Matthews, G. F.

AU - Petersson, P.

AU - Widdowson, A.

PY - 2014

Y1 - 2014

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.

KW - beryllium

KW - divertor materials

KW - plasma-materials interaction

KW - re-deposition

UR - http://www.scopus.com/inward/record.url?scp=84902196821&partnerID=8YFLogxK

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

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

M3 - 会议文章

AN - SCOPUS:84902196821

SN - 0281-1847

VL - T159

JO - Physica Scripta

JF - Physica Scripta

M1 - 014012

T2 - 14th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2013

Y2 - 13 May 2013 through 17 May 2013

ER -

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

Abstract

Keywords

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