Applicability of LIBS for in situ monitoring of deposition and retention on the ITER-like wall of JET: Comparison to SIMS

J. Karhunen (Corresponding Author), A. Hakola, J. Likonen, A. Lissovski, M. Laan, P. Paris, JET EFDA Contributors

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Laser-induced breakdown spectroscopy (LIBS) is a potential method for in situ monitoring of deposition and retention in fusion devices and is developed with the aim of being integrated in the diagnostics system of ITER. The inner divertor of the ITER-like wall of JET was studied by LIBS to show the applicability of the method in JET and ITER. The elemental depth profiles agreed with those given by earlier SIMS measurements. Deuterium was detected in the deposited layers and successfully distinguished from hydrogen. The poloidal patterns of the retained deuterium and deposited beryllium were also in line with the SIMS results with the largest deposition and retention taking place on the top part of Tile 1 and bottom part of Tile 3. The results of these studies support LIBS as a promising in situ solution to replace the present post mortem methods in monitoring metallic deposited layers.
Original languageEnglish
Pages (from-to)931-935
JournalJournal of Nuclear Materials
Volume463
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

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Laser induced breakdown spectroscopy
laser-induced breakdown spectroscopy
Secondary ion mass spectrometry
secondary ion mass spectrometry
Deuterium
tiles
Tile
Monitoring
deuterium
Beryllium
beryllium
Hydrogen
Fusion reactions
fusion
hydrogen
profiles

Cite this

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title = "Applicability of LIBS for in situ monitoring of deposition and retention on the ITER-like wall of JET: Comparison to SIMS",
abstract = "Laser-induced breakdown spectroscopy (LIBS) is a potential method for in situ monitoring of deposition and retention in fusion devices and is developed with the aim of being integrated in the diagnostics system of ITER. The inner divertor of the ITER-like wall of JET was studied by LIBS to show the applicability of the method in JET and ITER. The elemental depth profiles agreed with those given by earlier SIMS measurements. Deuterium was detected in the deposited layers and successfully distinguished from hydrogen. The poloidal patterns of the retained deuterium and deposited beryllium were also in line with the SIMS results with the largest deposition and retention taking place on the top part of Tile 1 and bottom part of Tile 3. The results of these studies support LIBS as a promising in situ solution to replace the present post mortem methods in monitoring metallic deposited layers.",
author = "J. Karhunen and A. Hakola and J. Likonen and A. Lissovski and M. Laan and P. Paris and Contributors, {JET EFDA}",
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year = "2015",
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language = "English",
volume = "463",
pages = "931--935",
journal = "Journal of Nuclear Materials",
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Applicability of LIBS for in situ monitoring of deposition and retention on the ITER-like wall of JET : Comparison to SIMS. / Karhunen, J. (Corresponding Author); Hakola, A.; Likonen, J.; Lissovski, A.; Laan, M.; Paris, P.; Contributors, JET EFDA.

In: Journal of Nuclear Materials, Vol. 463, 2015, p. 931-935.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Applicability of LIBS for in situ monitoring of deposition and retention on the ITER-like wall of JET

T2 - Comparison to SIMS

AU - Karhunen, J.

AU - Hakola, A.

AU - Likonen, J.

AU - Lissovski, A.

AU - Laan, M.

AU - Paris, P.

AU - Contributors, JET EFDA

N1 - Project code: 104445

PY - 2015

Y1 - 2015

N2 - Laser-induced breakdown spectroscopy (LIBS) is a potential method for in situ monitoring of deposition and retention in fusion devices and is developed with the aim of being integrated in the diagnostics system of ITER. The inner divertor of the ITER-like wall of JET was studied by LIBS to show the applicability of the method in JET and ITER. The elemental depth profiles agreed with those given by earlier SIMS measurements. Deuterium was detected in the deposited layers and successfully distinguished from hydrogen. The poloidal patterns of the retained deuterium and deposited beryllium were also in line with the SIMS results with the largest deposition and retention taking place on the top part of Tile 1 and bottom part of Tile 3. The results of these studies support LIBS as a promising in situ solution to replace the present post mortem methods in monitoring metallic deposited layers.

AB - Laser-induced breakdown spectroscopy (LIBS) is a potential method for in situ monitoring of deposition and retention in fusion devices and is developed with the aim of being integrated in the diagnostics system of ITER. The inner divertor of the ITER-like wall of JET was studied by LIBS to show the applicability of the method in JET and ITER. The elemental depth profiles agreed with those given by earlier SIMS measurements. Deuterium was detected in the deposited layers and successfully distinguished from hydrogen. The poloidal patterns of the retained deuterium and deposited beryllium were also in line with the SIMS results with the largest deposition and retention taking place on the top part of Tile 1 and bottom part of Tile 3. The results of these studies support LIBS as a promising in situ solution to replace the present post mortem methods in monitoring metallic deposited layers.

U2 - 10.1016/j.jnucmat.2014.10.028

DO - 10.1016/j.jnucmat.2014.10.028

M3 - Article

VL - 463

SP - 931

EP - 935

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -