2D tritium distribution on tungsten tiles used in JET ITER-like wall project

Y. Hatano; A. Widdowson; N. Bekris; C. Ayres; A. Baron-Wiechec; Jari Likonen; Seppo Koivuranta; J. Ikonen; K. Yumizuru; JET-EFDA contributors

doi:10.1016/j.jnucmat.2014.12.041

2D tritium distribution on tungsten tiles used in JET ITER-like wall project

Y. Hatano (Corresponding Author), A. Widdowson, N. Bekris, C. Ayres, A. Baron-Wiechec, Jari Likonen, Seppo Koivuranta, J. Ikonen, K. Yumizuru, JET-EFDA contributors

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Abstract

Post-mortem measurements of 2-dimensional tritium (T) distribution using an imaging plate (IP) technique were performed for tungsten (W) divertor tiles (W-coated CFC) used in JET-ITER like wall (ILW) project. The observed T distributions were clearly inhomogeneous, and there were band-like regions with high T concentrations that extended in the toroidal direction on tiles 1, 3, 4 and 6. The concentrations of T in the band-like regions were higher by an order of magnitude than the concentrations in other parts. The inhomogeneous T distributions were explained by non-uniform co-deposition with other elements such as beryllium. The concentrations of T on the outboard vertical tiles (tiles 7 and 8) were low and relatively uniform in comparison with other tiles.

Original language	English
Pages (from-to)	966-969
Journal	Journal of Nuclear Materials
Volume	463
DOIs	https://doi.org/10.1016/j.jnucmat.2014.12.041
Publication status	Published - 2015
MoE publication type	A1 Journal article-refereed

Keywords

Tritium
JET

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10.1016/j.jnucmat.2014.12.041

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title = "2D tritium distribution on tungsten tiles used in JET ITER-like wall project",

abstract = "Post-mortem measurements of 2-dimensional tritium (T) distribution using an imaging plate (IP) technique were performed for tungsten (W) divertor tiles (W-coated CFC) used in JET-ITER like wall (ILW) project. The observed T distributions were clearly inhomogeneous, and there were band-like regions with high T concentrations that extended in the toroidal direction on tiles 1, 3, 4 and 6. The concentrations of T in the band-like regions were higher by an order of magnitude than the concentrations in other parts. The inhomogeneous T distributions were explained by non-uniform co-deposition with other elements such as beryllium. The concentrations of T on the outboard vertical tiles (tiles 7 and 8) were low and relatively uniform in comparison with other tiles.",

keywords = "Tritium, JET",

author = "Y. Hatano and A. Widdowson and N. Bekris and C. Ayres and A. Baron-Wiechec and Jari Likonen and Seppo Koivuranta and J. Ikonen and K. Yumizuru and {JET-EFDA contributors}",

year = "2015",

doi = "10.1016/j.jnucmat.2014.12.041",

language = "English",

volume = "463",

pages = "966--969",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

}

TY - JOUR

T1 - 2D tritium distribution on tungsten tiles used in JET ITER-like wall project

AU - Hatano, Y.

AU - Widdowson, A.

AU - Bekris, N.

AU - Ayres, C.

AU - Baron-Wiechec, A.

AU - Likonen, Jari

AU - Koivuranta, Seppo

AU - Ikonen, J.

AU - Yumizuru, K.

AU - JET-EFDA contributors

PY - 2015

Y1 - 2015

N2 - Post-mortem measurements of 2-dimensional tritium (T) distribution using an imaging plate (IP) technique were performed for tungsten (W) divertor tiles (W-coated CFC) used in JET-ITER like wall (ILW) project. The observed T distributions were clearly inhomogeneous, and there were band-like regions with high T concentrations that extended in the toroidal direction on tiles 1, 3, 4 and 6. The concentrations of T in the band-like regions were higher by an order of magnitude than the concentrations in other parts. The inhomogeneous T distributions were explained by non-uniform co-deposition with other elements such as beryllium. The concentrations of T on the outboard vertical tiles (tiles 7 and 8) were low and relatively uniform in comparison with other tiles.

AB - Post-mortem measurements of 2-dimensional tritium (T) distribution using an imaging plate (IP) technique were performed for tungsten (W) divertor tiles (W-coated CFC) used in JET-ITER like wall (ILW) project. The observed T distributions were clearly inhomogeneous, and there were band-like regions with high T concentrations that extended in the toroidal direction on tiles 1, 3, 4 and 6. The concentrations of T in the band-like regions were higher by an order of magnitude than the concentrations in other parts. The inhomogeneous T distributions were explained by non-uniform co-deposition with other elements such as beryllium. The concentrations of T on the outboard vertical tiles (tiles 7 and 8) were low and relatively uniform in comparison with other tiles.

KW - Tritium

KW - JET

U2 - 10.1016/j.jnucmat.2014.12.041

DO - 10.1016/j.jnucmat.2014.12.041

M3 - Article

SN - 0022-3115

VL - 463

SP - 966

EP - 969

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

2D tritium distribution on tungsten tiles used in JET ITER-like wall project

Abstract

Keywords

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