Deuterium inventory in Tore Supra: Coupled carbon-deuterium balance

B. Pegourie (Corresponding Author), S. Panyotis, P. Languille, C. Martin, T. Dittmar, E. Gauthier, J.-C. Hatchressian, J.-Y. Pascal, P. Roubin, R. Ruffe, E. Tsitrone, S. Vartanian, H. Wang, A. Beaute, J. Bouvet, C. Brosset, J. Bucalossi, M. Cabie, E. Caprin, X. CourtoisR. Dachicourt, E. Delhambre, C. Dominici, D. Douai, A. Ekedahl, J.P. Gunn, Anssi Hakola, W. Jocob, H. Khodja, Jari Likonen, F. Linez, A. Litnovsky, Y. Marandet, S. Markelj, A. Martinez, M. Mayer, O. Meyer, P. Monier-Garbet, P. Moreau, V. Negrier, P. Oddon, C. Pardanaud, B. Pasquet, P. Pelicon, P. Petersson, V. Philipps, G. Possnert, D. Reiter, J. Roth, I. Roure, M. Rubel, F. Saint-Laurent, F. Samaille, P. Vavpetič

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    Abstract

    This paper presents an analysis of the carbon–deuterium circulation and the resulting balance in Tore Supra over the period 2002–2007. Carbon balance combines the estimation of carbon gross erosion from spectroscopy, net erosion and deposition using confocal microscopy, lock-in thermography and SEM, and a measure of the amount of deposits collected in the vacuum chamber. Fuel retention is determined from post-mortem (PM) analyses and gas balance (GB) measurements. Special attention was paid to the deuterium outgassed during the nights and weekends of the experimental campaign (vessel under vacuum, Plasma Facing Components at 120 °C) and during vents (vessel at atmospheric pressure, PFCs at room temperature). It is shown that this outgassing is the main process reconciling the PM and GB estimations of fuel retention, closing the coupled carbon–deuterium balance. In particular, it explains why the deuterium concentration in deposits decreases with increasing depth.
    Original languageEnglish
    Pages (from-to)S120-S125
    Number of pages6
    JournalJournal of Nuclear Materials
    Volume438
    Issue numberSupplement
    DOIs
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed
    Event20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices - Aachen, Aachen, Germany
    Duration: 21 May 201225 May 2012

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  • Cite this

    Pegourie, B., Panyotis, S., Languille, P., Martin, C., Dittmar, T., Gauthier, E., Hatchressian, J-C., Pascal, J-Y., Roubin, P., Ruffe, R., Tsitrone, E., Vartanian, S., Wang, H., Beaute, A., Bouvet, J., Brosset, C., Bucalossi, J., Cabie, M., Caprin, E., ... Vavpetič, P. (2013). Deuterium inventory in Tore Supra: Coupled carbon-deuterium balance. Journal of Nuclear Materials, 438(Supplement), S120-S125. https://doi.org/10.1016/j.jnucmat.2013.01.019