Erosion and deposition in the JET divertor during the first ILW campaign

M. Mayer (Corresponding Author), S. Krat, W. Van Renterghem, A. Baron-Wiechec, S. Brezinsek, I. Bykov, P. Coad, Yu Gasparyan, K. Heinola, J. Likonen, A. Pisarev, C. Ruset, G. de Saint-Aubin, A. Widdowson, JET Contributors

    Research output: Contribution to journalArticleScientificpeer-review

    38 Citations (Scopus)

    Abstract

    Erosion and deposition were studied in the JET divertor during the first JET ITER-like wall campaign 2011 to 2012 using marker tiles. An almost complete poloidal section consisting of tiles 0, 1, 3, 4, 6, 7, 8 was studied. The data from divertor tile surfaces were completed by the analysis of samples from remote divertor areas and from the inner wall cladding. The total mass of material deposited in the divertor decreased by a factor of 4-9 compared to the deposition of carbon during all-carbon JET operation before 2010. Deposits in 2011 to 2012 consist mainly of beryllium with 5-20 at.% of carbon and oxygen, respectively, and small amounts of Ni, Cr, Fe and W. This decrease of material deposition in the divertor is accompanied by a decrease of total deuterium retention inside the JET vessel by a factor of 10 to 20. The detailed erosion/deposition pattern in the divertor with the ITER-like wall configuration shows rigorous changes compared to the pattern with the all-carbon JET configuration.
    Original languageEnglish
    Article number014051
    Number of pages9
    JournalPhysica Scripta
    Volume2016
    Issue numberT167
    DOIs
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Erosion
    erosion
    Carbon
    Tile
    tiles
    carbon
    Decrease
    Configuration
    Vessel
    Oxygen
    beryllium
    configurations
    markers
    vessels
    deuterium
    deposits
    oxygen

    Cite this

    Mayer, M., Krat, S., Van Renterghem, W., Baron-Wiechec, A., Brezinsek, S., Bykov, I., ... Contributors, JET. (2016). Erosion and deposition in the JET divertor during the first ILW campaign. Physica Scripta, 2016(T167), [014051]. https://doi.org/10.1088/0031-8949/T167/1/014051
    Mayer, M. ; Krat, S. ; Van Renterghem, W. ; Baron-Wiechec, A. ; Brezinsek, S. ; Bykov, I. ; Coad, P. ; Gasparyan, Yu ; Heinola, K. ; Likonen, J. ; Pisarev, A. ; Ruset, C. ; de Saint-Aubin, G. ; Widdowson, A. ; Contributors, JET. / Erosion and deposition in the JET divertor during the first ILW campaign. In: Physica Scripta. 2016 ; Vol. 2016, No. T167.
    @article{576c0141fb7440edb33757ff39e41c7a,
    title = "Erosion and deposition in the JET divertor during the first ILW campaign",
    abstract = "Erosion and deposition were studied in the JET divertor during the first JET ITER-like wall campaign 2011 to 2012 using marker tiles. An almost complete poloidal section consisting of tiles 0, 1, 3, 4, 6, 7, 8 was studied. The data from divertor tile surfaces were completed by the analysis of samples from remote divertor areas and from the inner wall cladding. The total mass of material deposited in the divertor decreased by a factor of 4-9 compared to the deposition of carbon during all-carbon JET operation before 2010. Deposits in 2011 to 2012 consist mainly of beryllium with 5-20 at.{\%} of carbon and oxygen, respectively, and small amounts of Ni, Cr, Fe and W. This decrease of material deposition in the divertor is accompanied by a decrease of total deuterium retention inside the JET vessel by a factor of 10 to 20. The detailed erosion/deposition pattern in the divertor with the ITER-like wall configuration shows rigorous changes compared to the pattern with the all-carbon JET configuration.",
    author = "M. Mayer and S. Krat and {Van Renterghem}, W. and A. Baron-Wiechec and S. Brezinsek and I. Bykov and P. Coad and Yu Gasparyan and K. Heinola and J. Likonen and A. Pisarev and C. Ruset and {de Saint-Aubin}, G. and A. Widdowson and JET Contributors",
    note = "Project code: 104445",
    year = "2016",
    doi = "10.1088/0031-8949/T167/1/014051",
    language = "English",
    volume = "2016",
    journal = "Physica Scripta",
    issn = "0031-8949",
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    Mayer, M, Krat, S, Van Renterghem, W, Baron-Wiechec, A, Brezinsek, S, Bykov, I, Coad, P, Gasparyan, Y, Heinola, K, Likonen, J, Pisarev, A, Ruset, C, de Saint-Aubin, G, Widdowson, A & Contributors, JET 2016, 'Erosion and deposition in the JET divertor during the first ILW campaign', Physica Scripta, vol. 2016, no. T167, 014051. https://doi.org/10.1088/0031-8949/T167/1/014051

    Erosion and deposition in the JET divertor during the first ILW campaign. / Mayer, M. (Corresponding Author); Krat, S.; Van Renterghem, W.; Baron-Wiechec, A.; Brezinsek, S.; Bykov, I.; Coad, P.; Gasparyan, Yu; Heinola, K.; Likonen, J.; Pisarev, A.; Ruset, C.; de Saint-Aubin, G.; Widdowson, A.; Contributors, JET.

    In: Physica Scripta, Vol. 2016, No. T167, 014051, 2016.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Erosion and deposition in the JET divertor during the first ILW campaign

    AU - Mayer, M.

    AU - Krat, S.

    AU - Van Renterghem, W.

    AU - Baron-Wiechec, A.

    AU - Brezinsek, S.

    AU - Bykov, I.

    AU - Coad, P.

    AU - Gasparyan, Yu

    AU - Heinola, K.

    AU - Likonen, J.

    AU - Pisarev, A.

    AU - Ruset, C.

    AU - de Saint-Aubin, G.

    AU - Widdowson, A.

    AU - Contributors, JET

    N1 - Project code: 104445

    PY - 2016

    Y1 - 2016

    N2 - Erosion and deposition were studied in the JET divertor during the first JET ITER-like wall campaign 2011 to 2012 using marker tiles. An almost complete poloidal section consisting of tiles 0, 1, 3, 4, 6, 7, 8 was studied. The data from divertor tile surfaces were completed by the analysis of samples from remote divertor areas and from the inner wall cladding. The total mass of material deposited in the divertor decreased by a factor of 4-9 compared to the deposition of carbon during all-carbon JET operation before 2010. Deposits in 2011 to 2012 consist mainly of beryllium with 5-20 at.% of carbon and oxygen, respectively, and small amounts of Ni, Cr, Fe and W. This decrease of material deposition in the divertor is accompanied by a decrease of total deuterium retention inside the JET vessel by a factor of 10 to 20. The detailed erosion/deposition pattern in the divertor with the ITER-like wall configuration shows rigorous changes compared to the pattern with the all-carbon JET configuration.

    AB - Erosion and deposition were studied in the JET divertor during the first JET ITER-like wall campaign 2011 to 2012 using marker tiles. An almost complete poloidal section consisting of tiles 0, 1, 3, 4, 6, 7, 8 was studied. The data from divertor tile surfaces were completed by the analysis of samples from remote divertor areas and from the inner wall cladding. The total mass of material deposited in the divertor decreased by a factor of 4-9 compared to the deposition of carbon during all-carbon JET operation before 2010. Deposits in 2011 to 2012 consist mainly of beryllium with 5-20 at.% of carbon and oxygen, respectively, and small amounts of Ni, Cr, Fe and W. This decrease of material deposition in the divertor is accompanied by a decrease of total deuterium retention inside the JET vessel by a factor of 10 to 20. The detailed erosion/deposition pattern in the divertor with the ITER-like wall configuration shows rigorous changes compared to the pattern with the all-carbon JET configuration.

    U2 - 10.1088/0031-8949/T167/1/014051

    DO - 10.1088/0031-8949/T167/1/014051

    M3 - Article

    VL - 2016

    JO - Physica Scripta

    JF - Physica Scripta

    SN - 0031-8949

    IS - T167

    M1 - 014051

    ER -

    Mayer M, Krat S, Van Renterghem W, Baron-Wiechec A, Brezinsek S, Bykov I et al. Erosion and deposition in the JET divertor during the first ILW campaign. Physica Scripta. 2016;2016(T167). 014051. https://doi.org/10.1088/0031-8949/T167/1/014051