Development of ITER relevant laser techniques for deposited layer characterisation and tritium inventory

A. Malaquias (Corresponding Author), V. Philipps, A. Huber, Antti Hakola, Jari Likonen, J. Kolehmainen, S. Tervakangas, M. Aints, P. Paris, M. Laan, A. Lissovski, S. Almaviva, L. Caneve, F. Colao, G. Maddaluno, M. Kubkowska, P. Gasior, H.J. van der Meiden, A.R. Lof, P.A. Zeijlmans van EmmichovenP. Petersson, M. Rubel, E. Fortuna, Q. Xiao

    Research output: Contribution to journalArticleScientificpeer-review

    26 Citations (Scopus)

    Abstract

    Laser Induced Breakdown Spectroscopy (LIBS) is a potential candidate to monitor the layer composition and fuel retention during and after plasma shots on specific locations of the main chamber and divertor of ITER. This method is being investigated in a cooperative research programme on plasma devices such as TEXTOR, FTU, MAGNUM-PSI and in other various laboratorial experiments. In this paper LIBS results from targets of D–H-rich carbon films and mixed W–Al–C deposits on bulk tungsten substrates are reported (simulating ITER-like deposits with Al as proxy for Be). Two independent methods, one to determine the relative elemental composition and the other the absolute contents of the target based on the experimental LIBS signals are proposed. The results show that LIBS has the capability to provide the relative concentrations of the elements on the deposited layer when the experimental conditions on the targets surface are identical to the calibration samples.
    Original languageEnglish
    Pages (from-to)S936-S939
    Number of pages4
    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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