X-ray microbeam transmission/fluorescence method for non-destructive characterization of tungsten coated carbon materials

I. Tiseanu (Corresponding Author), M. Mayer, T. Craciunescu, Antti Hakola, Seppo Koivuranta, Jari Likonen, C. Ruset, C. Dobrea, ASDEX Upgrade Team

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

Tungsten erosion, its subsequent transport and redeposition are of great interest, because a full tungsten divertor is foreseen to be used during the deuterium-tritium operational phase of ITER. The erosion of tungsten and carbon marker layers was extensively studied in the outer divertor of ASDEX Upgrade (AUG), and work is currently in progress to completely replace the existing JET CFC tiles with tungsten-coated tiles within the JET ITER-like wall project. The need for fast and non-destructive method which allows the quantitative determination of the thickness of a tungsten coating on a carbon material on large areas led us to evaluate a combined absorption/fluorescence X-ray (XRTF) technique. The method can provide fast analysis, high spatial resolution and a material selective detection of deposited layers and inclusions. It was applied on W coated fine grain graphite (FGG) tiles from AUG's divertor. It is proved that the method is able to provide information about the uniformity of the tungsten coating on a graphite or CFC substrate whilst the technique can be used to determine the thickness of the tungsten and other marker materials coatings. It represents a unique instrument for the post-mortem analysis of the coatings.
Original languageEnglish
Pages (from-to)S192-S197
JournalSurface and Coatings Technology
Volume205
Issue numberSuppl. 2
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Fingerprint

Tungsten
microbeams
tungsten
Carbon
Fluorescence
X rays
fluorescence
carbon
tiles
Tile
x rays
coatings
chlorofluorocarbons
Coatings
Chlorofluorocarbons
Graphite
markers
erosion
Erosion
graphite

Keywords

  • Tungsten
  • erosion
  • X-ray fluorescence
  • microtomography
  • ASDEX
  • JET

Cite this

Tiseanu, I. ; Mayer, M. ; Craciunescu, T. ; Hakola, Antti ; Koivuranta, Seppo ; Likonen, Jari ; Ruset, C. ; Dobrea, C. ; ASDEX Upgrade Team. / X-ray microbeam transmission/fluorescence method for non-destructive characterization of tungsten coated carbon materials. In: Surface and Coatings Technology. 2011 ; Vol. 205, No. Suppl. 2. pp. S192-S197.
@article{00b03790547e4dffaa325bcac7f2971b,
title = "X-ray microbeam transmission/fluorescence method for non-destructive characterization of tungsten coated carbon materials",
abstract = "Tungsten erosion, its subsequent transport and redeposition are of great interest, because a full tungsten divertor is foreseen to be used during the deuterium-tritium operational phase of ITER. The erosion of tungsten and carbon marker layers was extensively studied in the outer divertor of ASDEX Upgrade (AUG), and work is currently in progress to completely replace the existing JET CFC tiles with tungsten-coated tiles within the JET ITER-like wall project. The need for fast and non-destructive method which allows the quantitative determination of the thickness of a tungsten coating on a carbon material on large areas led us to evaluate a combined absorption/fluorescence X-ray (XRTF) technique. The method can provide fast analysis, high spatial resolution and a material selective detection of deposited layers and inclusions. It was applied on W coated fine grain graphite (FGG) tiles from AUG's divertor. It is proved that the method is able to provide information about the uniformity of the tungsten coating on a graphite or CFC substrate whilst the technique can be used to determine the thickness of the tungsten and other marker materials coatings. It represents a unique instrument for the post-mortem analysis of the coatings.",
keywords = "Tungsten, erosion, X-ray fluorescence, microtomography, ASDEX, JET",
author = "I. Tiseanu and M. Mayer and T. Craciunescu and Antti Hakola and Seppo Koivuranta and Jari Likonen and C. Ruset and C. Dobrea and {ASDEX Upgrade Team}",
year = "2011",
doi = "10.1016/j.surfcoat.2011.03.049",
language = "English",
volume = "205",
pages = "S192--S197",
journal = "Surface and Coatings Technology",
issn = "0257-8972",
publisher = "Elsevier",
number = "Suppl. 2",

}

X-ray microbeam transmission/fluorescence method for non-destructive characterization of tungsten coated carbon materials. / Tiseanu, I. (Corresponding Author); Mayer, M.; Craciunescu, T.; Hakola, Antti; Koivuranta, Seppo; Likonen, Jari; Ruset, C.; Dobrea, C.; ASDEX Upgrade Team.

In: Surface and Coatings Technology, Vol. 205, No. Suppl. 2, 2011, p. S192-S197.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - X-ray microbeam transmission/fluorescence method for non-destructive characterization of tungsten coated carbon materials

AU - Tiseanu, I.

AU - Mayer, M.

AU - Craciunescu, T.

AU - Hakola, Antti

AU - Koivuranta, Seppo

AU - Likonen, Jari

AU - Ruset, C.

AU - Dobrea, C.

AU - ASDEX Upgrade Team

PY - 2011

Y1 - 2011

N2 - Tungsten erosion, its subsequent transport and redeposition are of great interest, because a full tungsten divertor is foreseen to be used during the deuterium-tritium operational phase of ITER. The erosion of tungsten and carbon marker layers was extensively studied in the outer divertor of ASDEX Upgrade (AUG), and work is currently in progress to completely replace the existing JET CFC tiles with tungsten-coated tiles within the JET ITER-like wall project. The need for fast and non-destructive method which allows the quantitative determination of the thickness of a tungsten coating on a carbon material on large areas led us to evaluate a combined absorption/fluorescence X-ray (XRTF) technique. The method can provide fast analysis, high spatial resolution and a material selective detection of deposited layers and inclusions. It was applied on W coated fine grain graphite (FGG) tiles from AUG's divertor. It is proved that the method is able to provide information about the uniformity of the tungsten coating on a graphite or CFC substrate whilst the technique can be used to determine the thickness of the tungsten and other marker materials coatings. It represents a unique instrument for the post-mortem analysis of the coatings.

AB - Tungsten erosion, its subsequent transport and redeposition are of great interest, because a full tungsten divertor is foreseen to be used during the deuterium-tritium operational phase of ITER. The erosion of tungsten and carbon marker layers was extensively studied in the outer divertor of ASDEX Upgrade (AUG), and work is currently in progress to completely replace the existing JET CFC tiles with tungsten-coated tiles within the JET ITER-like wall project. The need for fast and non-destructive method which allows the quantitative determination of the thickness of a tungsten coating on a carbon material on large areas led us to evaluate a combined absorption/fluorescence X-ray (XRTF) technique. The method can provide fast analysis, high spatial resolution and a material selective detection of deposited layers and inclusions. It was applied on W coated fine grain graphite (FGG) tiles from AUG's divertor. It is proved that the method is able to provide information about the uniformity of the tungsten coating on a graphite or CFC substrate whilst the technique can be used to determine the thickness of the tungsten and other marker materials coatings. It represents a unique instrument for the post-mortem analysis of the coatings.

KW - Tungsten

KW - erosion

KW - X-ray fluorescence

KW - microtomography

KW - ASDEX

KW - JET

U2 - 10.1016/j.surfcoat.2011.03.049

DO - 10.1016/j.surfcoat.2011.03.049

M3 - Article

VL - 205

SP - S192-S197

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

SN - 0257-8972

IS - Suppl. 2

ER -