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-MantilaN. 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.
    @article{02ce38f658234c458382f96626cf84b7,
    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

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    SP - 258

    EP - 261

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    JF - Nuclear Materials and Energy

    SN - 2352-1791

    ER -