Tritium distributions on W-coated divertor tiles used in the third JET ITER-like wall campaign

Y. Hatano (Corresponding Author), S. E. Lee, Jari Likonen, S. Koivuranta, M. Hara, S. Masuzaki, N. Asakura, K. Isobe, T. Hayashi, J. Ikonen, A.M. Widdowson, X. Litaudon, S. Abduallev, M. Abhangi, P. Abreu, M. Afzal, K.M. Aggarwal, T. Ahlgren, J.H. Ahn, L. Aho-Mantila & 6 others N. Aiba, M. Airila, R. Albanese, V. Aldred, D. Alegre, JET contributors

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Tritium (T) distributions on tungsten (W)-coated plasma-facing tiles used in the third ITER-like wall campaign (2015–2016) of the Joint European Torus (JET) were examined by means of an imaging plate technique and β-ray induced x-ray spectrometry, and they were compared with the distributions after the second (2013–2014) campaign. Strong enrichment of T in beryllium (Be) deposition layers was observed after the second campaign. In contrast, T distributions after the third campaign was more uniform though Be deposition layers were visually recognized. The one of the possible explanations is enhanced desorption of T from Be deposition layers due to higher tile temperatures caused by higher energy input in the third campaign.
Original languageEnglish
Pages (from-to)258-261
Number of pages4
JournalNuclear Materials and Energy
Volume18
DOIs
Publication statusPublished - 1 Jan 2019
MoE publication typeA1 Journal article-refereed

Fingerprint

Joint European Torus
Beryllium
Tritium
tiles
Tile
tritium
beryllium
Facings
Tungsten
Spectrometry
Desorption
rays
tungsten
desorption
Plasmas
Imaging techniques
X rays
spectroscopy
x rays
Temperature

Keywords

  • tritium retention
  • radiation
  • deposition

Cite this

Hatano, Y. ; Lee, S. E. ; Likonen, Jari ; Koivuranta, S. ; Hara, M. ; Masuzaki, S. ; Asakura, N. ; Isobe, K. ; Hayashi, T. ; Ikonen, J. ; Widdowson, A.M. ; Litaudon, X. ; Abduallev, S. ; Abhangi, M. ; Abreu, P. ; Afzal, M. ; Aggarwal, K.M. ; Ahlgren, T. ; Ahn, J.H. ; Aho-Mantila, L. ; Aiba, N. ; Airila, M. ; Albanese, R. ; Aldred, V. ; Alegre, D. ; contributors, JET. / Tritium distributions on W-coated divertor tiles used in the third JET ITER-like wall campaign. In: Nuclear Materials and Energy. 2019 ; Vol. 18. pp. 258-261.
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title = "Tritium distributions on W-coated divertor tiles used in the third JET ITER-like wall campaign",
abstract = "Tritium (T) distributions on tungsten (W)-coated plasma-facing tiles used in the third ITER-like wall campaign (2015–2016) of the Joint European Torus (JET) were examined by means of an imaging plate technique and β-ray induced x-ray spectrometry, and they were compared with the distributions after the second (2013–2014) campaign. Strong enrichment of T in beryllium (Be) deposition layers was observed after the second campaign. In contrast, T distributions after the third campaign was more uniform though Be deposition layers were visually recognized. The one of the possible explanations is enhanced desorption of T from Be deposition layers due to higher tile temperatures caused by higher energy input in the third campaign.",
keywords = "tritium retention, radiation, deposition",
author = "Y. Hatano and Lee, {S. E.} and Jari Likonen and S. Koivuranta and M. Hara and S. Masuzaki and N. Asakura and K. Isobe and T. Hayashi and J. Ikonen and A.M. Widdowson and X. Litaudon and S. Abduallev and M. Abhangi and P. Abreu and M. Afzal and K.M. Aggarwal and T. Ahlgren and J.H. Ahn and L. Aho-Mantila and N. Aiba and M. Airila and R. Albanese and V. Aldred and D. Alegre and JET contributors",
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Hatano, Y, Lee, SE, Likonen, J, Koivuranta, S, Hara, M, Masuzaki, S, Asakura, N, Isobe, K, Hayashi, T, Ikonen, J, Widdowson, AM, Litaudon, X, Abduallev, S, Abhangi, M, Abreu, P, Afzal, M, Aggarwal, KM, Ahlgren, T, Ahn, JH, Aho-Mantila, L, Aiba, N, Airila, M, Albanese, R, Aldred, V, Alegre, D & contributors, JET 2019, 'Tritium distributions on W-coated divertor tiles used in the third JET ITER-like wall campaign', Nuclear Materials and Energy, vol. 18, pp. 258-261. https://doi.org/10.1016/j.nme.2019.01.001

Tritium distributions on W-coated divertor tiles used in the third JET ITER-like wall campaign. / Hatano, Y. (Corresponding Author); Lee, S. E.; Likonen, Jari; Koivuranta, S.; Hara, M.; Masuzaki, S.; Asakura, N.; Isobe, K.; Hayashi, T.; Ikonen, J.; Widdowson, A.M.; Litaudon, X.; Abduallev, S.; Abhangi, M.; Abreu, P.; Afzal, M.; Aggarwal, K.M.; Ahlgren, T.; Ahn, J.H.; Aho-Mantila, L.; Aiba, N.; Airila, M.; Albanese, R.; Aldred, V.; Alegre, D.; contributors, JET.

In: Nuclear Materials and Energy, Vol. 18, 01.01.2019, p. 258-261.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Tritium distributions on W-coated divertor tiles used in the third JET ITER-like wall campaign

AU - Hatano, Y.

AU - Lee, S. E.

AU - Likonen, Jari

AU - Koivuranta, S.

AU - Hara, M.

AU - Masuzaki, S.

AU - Asakura, N.

AU - Isobe, K.

AU - Hayashi, T.

AU - Ikonen, J.

AU - Widdowson, A.M.

AU - Litaudon, X.

AU - Abduallev, S.

AU - Abhangi, M.

AU - Abreu, P.

AU - Afzal, M.

AU - Aggarwal, K.M.

AU - Ahlgren, T.

AU - Ahn, J.H.

AU - Aho-Mantila, L.

AU - Aiba, N.

AU - Airila, M.

AU - Albanese, R.

AU - Aldred, V.

AU - Alegre, D.

AU - contributors, JET

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Tritium (T) distributions on tungsten (W)-coated plasma-facing tiles used in the third ITER-like wall campaign (2015–2016) of the Joint European Torus (JET) were examined by means of an imaging plate technique and β-ray induced x-ray spectrometry, and they were compared with the distributions after the second (2013–2014) campaign. Strong enrichment of T in beryllium (Be) deposition layers was observed after the second campaign. In contrast, T distributions after the third campaign was more uniform though Be deposition layers were visually recognized. The one of the possible explanations is enhanced desorption of T from Be deposition layers due to higher tile temperatures caused by higher energy input in the third campaign.

AB - Tritium (T) distributions on tungsten (W)-coated plasma-facing tiles used in the third ITER-like wall campaign (2015–2016) of the Joint European Torus (JET) were examined by means of an imaging plate technique and β-ray induced x-ray spectrometry, and they were compared with the distributions after the second (2013–2014) campaign. Strong enrichment of T in beryllium (Be) deposition layers was observed after the second campaign. In contrast, T distributions after the third campaign was more uniform though Be deposition layers were visually recognized. The one of the possible explanations is enhanced desorption of T from Be deposition layers due to higher tile temperatures caused by higher energy input in the third campaign.

KW - tritium retention

KW - radiation

KW - deposition

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U2 - 10.1016/j.nme.2019.01.001

DO - 10.1016/j.nme.2019.01.001

M3 - Article

VL - 18

SP - 258

EP - 261

JO - Nuclear Materials and Energy

JF - Nuclear Materials and Energy

SN - 2352-1791

ER -